A dome () is an architectural element similar to the hollow upper half of a
sphere
A sphere () is a Geometry, geometrical object that is a solid geometry, three-dimensional analogue to a two-dimensional circle. A sphere is the Locus (mathematics), set of points that are all at the same distance from a given point in three ...
. There is significant overlap with the term
cupola
In architecture, a cupola () is a relatively small, most often dome-like, tall structure on top of a building. Often used to provide a lookout or to admit light and air, it usually crowns a larger roof or dome.
The word derives, via Italian, from ...
, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a matter of controversy and there are a wide variety of forms and specialized terms to describe them.
A dome can rest directly upon a
rotunda wall, a
drum
The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. Drums consist of at least one membrane, called a drumhead or drum skin, that is stretched over a she ...
, or a system of
squinch
In architecture, a squinch is a triangular corner that supports the base of a dome. Its visual purpose is to translate a rectangle into an octagon. See also: pendentive.
Construction
A squinch is typically formed by a masonry arch that spans ...
es or
pendentive
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. The pendentives, which are triangular segments of a sphere, taper to points ...
s used to accommodate the transition in shape from a rectangular or square space to the round or polygonal base of the dome. The dome's apex may be closed or may be open in the form of an
oculus Oculus (a term from Latin ''oculus'', meaning 'eye'), may refer to the following
Architecture
* Oculus (architecture), a circular opening in the centre of a dome or in a wall
Arts, entertainment, and media
* ''Oculus'' (film), a 2013 American ...
, which may itself be covered with a
roof lantern
A roof lantern is a daylighting architectural element. Architectural lanterns are part of a larger roof and provide natural light into the space or room below. In contemporary use it is an architectural skylight structure.
A lantern roof wil ...
and cupola.
Domes have a long architectural lineage that extends back into
prehistory
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of ...
. Domes were built in
ancient Mesopotamia
The history of Mesopotamia ranges from the earliest human occupation in the Paleolithic period up to Late antiquity. This history is pieced together from evidence retrieved from archaeological excavations and, after the introduction of writing i ...
, and they have been found in
Persian
Persian may refer to:
* People and things from Iran, historically called ''Persia'' in the English language
** Persians, the majority ethnic group in Iran, not to be conflated with the Iranic peoples
** Persian language, an Iranian language of the ...
,
Hellenistic
In Classical antiquity, the Hellenistic period covers the time in Mediterranean history after Classical Greece, between the death of Alexander the Great in 323 BC and the emergence of the Roman Empire, as signified by the Battle of Actium in ...
,
Roman
Roman or Romans most often refers to:
*Rome, the capital city of Italy
*Ancient Rome, Roman civilization from 8th century BC to 5th century AD
*Roman people, the people of ancient Rome
*''Epistle to the Romans'', shortened to ''Romans'', a letter ...
, and
Chinese
Chinese can refer to:
* Something related to China
* Chinese people, people of Chinese nationality, citizenship, and/or ethnicity
**''Zhonghua minzu'', the supra-ethnic concept of the Chinese nation
** List of ethnic groups in China, people of ...
architecture in the
ancient world
Ancient history is a time period from the beginning of writing and recorded human history to as far as late antiquity. The span of recorded history is roughly 5,000 years, beginning with the Sumerian cuneiform script. Ancient history cove ...
, as well as among a number of
indigenous
Indigenous may refer to:
*Indigenous peoples
*Indigenous (ecology), presence in a region as the result of only natural processes, with no human intervention
*Indigenous (band), an American blues-rock band
*Indigenous (horse), a Hong Kong racehorse ...
building traditions throughout the world. Dome structures were common in both
Byzantine architecture
Byzantine architecture is the architecture of the Byzantine Empire, or Eastern Roman Empire.
The Byzantine era is usually dated from 330 AD, when Constantine the Great moved the Roman capital to Byzantium, which became Constantinople, until th ...
and
Sasanian architecture
Sasanian architecture refers to the Persian architectural style that reached a peak in its development during the Sasanian era. In many ways the Sasanian Empire period (224–651 CE) witnessed the highest achievement of Iranian civilization, and ...
, which influenced that of the rest of
Europe
Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
and
Islam
Islam (; ar, ۘالِإسلَام, , ) is an Abrahamic religions, Abrahamic Monotheism#Islam, monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of God in Islam, God (or ...
, respectively, in the
Middle Ages
In the history of Europe, the Middle Ages or medieval period lasted approximately from the late 5th to the late 15th centuries, similar to the post-classical period of global history. It began with the fall of the Western Roman Empire a ...
. The domes of European
Renaissance architecture
Renaissance architecture is the European architecture of the period between the early 15th and early 16th centuries in different regions, demonstrating a conscious revival and development of certain elements of Ancient Greece, ancient Greek and ...
spread from Italy in the
early modern period, while domes were frequently employed in
Ottoman architecture
Ottoman architecture is the architectural style that developed under the Ottoman Empire. It first emerged in northwestern Anatolia in the late 13th century and developed from earlier Seljuk architecture, Seljuk Turkish architecture, with influen ...
at the same time.
Baroque
The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including t ...
and
Neoclassical architecture
Neoclassical architecture is an architectural style produced by the Neoclassical movement that began in the mid-18th century in Italy and France. It became one of the most prominent architectural styles in the Western world. The prevailing style ...
took inspiration from Roman domes.
Advancements in mathematics, materials, and production techniques resulted in new dome types. Domes have been constructed over the centuries from mud, snow, stone, wood, brick, concrete, metal, glass, and plastic. The symbolism associated with domes includes
mortuary
A morgue or mortuary (in a hospital or elsewhere) is a place used for the storage of human corpses awaiting identification (ID), removal for autopsy, respectful burial, cremation or other methods of disposal. In modern times, corpses have cus ...
,
celestial
Celestial may refer to:
Science
* Objects or events seen in the sky and the following astronomical terms:
** Astronomical object, a naturally occurring physical entity, association, or structure that exists in the observable universe
** Celes ...
, and governmental traditions that have likewise altered over time. The domes of the modern world can be found over religious buildings, legislative chambers, sports stadiums, and a variety of functional structures.
Etymology
The English word "dome" ultimately derives from the ancient Greek and Latin ''domus'' ("house"), which, up through the Renaissance, labeled a revered house, such as a ''Domus Dei'', or "House of God", regardless of the shape of its roof. This is reflected in the uses of the Italian word ''duomo'', the German/Icelandic/Danish word ''dom'' ("cathedral"), and the English word ''dome'' as late as 1656, when it meant a "Town-House, Guild-Hall, State-House, and Meeting-House in a city." The French word ''dosme'' came to acquire the meaning of a
cupola
In architecture, a cupola () is a relatively small, most often dome-like, tall structure on top of a building. Often used to provide a lookout or to admit light and air, it usually crowns a larger roof or dome.
The word derives, via Italian, from ...
vault, specifically, by 1660. This French definition gradually became the standard usage of the English ''dome'' in the eighteenth century as many of the most impressive Houses of God were built with monumental domes, and in response to the scientific need for more technical terms.
Definitions
Across the ancient world, curved-roof structures that would today be called domes had a number of different names reflecting a variety of shapes, traditions, and symbolic associations. The shapes were derived from traditions of pre-historic shelters made from various impermanent pliable materials and were only later reproduced as vaulting in more durable materials. The hemispherical shape often associated with domes today derives from Greek geometry and Roman standardization, but other shapes persisted, including a pointed and bulbous tradition inherited by some early Islamic mosques.
Modern academic study of the topic has been controversial and confused by inconsistent definitions, such as those for cloister vaults and domical vaults. Dictionary definitions of the term "dome" are often general and imprecise. Generally-speaking, it "is non-specific, a blanket-word to describe an hemispherical or similar spanning element." Published definitions include: hemispherical roofs alone; revolved
arch
An arch is a vertical curved structure that spans an elevated space and may or may not support the weight above it, or in case of a horizontal arch like an arch dam, the hydrostatic pressure against it.
Arches may be synonymous with vaul ...
es; and vaults on a circular base alone, circular or polygonal base, circular, elliptical, or polygonal base, or an undefined area. Definitions specifying vertical sections include: semicircular, pointed, or bulbous; semicircular, segmental or pointed; semicircular, segmental, pointed, or bulbous; semicircular, segmental, elliptical, or bulbous; and high profile, hemispherical, or flattened.
![Arc truefalserp](https://upload.wikimedia.org/wikipedia/commons/b/bc/Arc_truefalserp.jpg)
Sometimes called "false" domes,
corbel
In architecture, a corbel is a structural piece of stone, wood or metal jutting from a wall to carry a superincumbent weight, a type of bracket. A corbel is a solid piece of material in the wall, whereas a console is a piece applied to the s ...
domes achieve their shape by extending each horizontal layer of stones inward slightly farther than the lower one until they meet at the top. A "false" dome may also refer to a wooden dome. The Italian use of the term ''finto'', meaning "false", can be traced back to the 17th century in the use of vaulting made of reed mats and gypsum mortar. "True" domes are said to be those whose structure is in a state of compression, with constituent elements of wedge-shaped
voussoir
A voussoir () is a wedge-shaped element, typically a stone, which is used in building an arch or vault.
Although each unit in an arch or vault is a voussoir, two units are of distinct functional importance: the keystone and the springer. The ...
s, the joints of which align with a central point. The validity of this is unclear, as domes built underground with corbelled stone layers are in compression from the surrounding earth.
The precise definition of "pendentive" has also been a source of academic contention, such as whether or not corbelling is permitted under the definition and whether or not the lower portions of a sail vault should be considered pendentives. Domes with pendentives can be divided into two kinds: ''simple'' and ''compound''. In the case of the ''simple dome'', the pendentives are part of the same sphere as the dome itself; however, such domes are rare. In the case of the more common ''compound dome'', the pendentives are part of the surface of a larger sphere below that of the dome itself and form a circular base for either the dome or a drum section.
The fields of engineering and architecture have lacked common language for domes, with engineering focused on structural behavior and architecture focused on form and symbolism. Additionally, new materials and structural systems in the 20th century have allowed for large dome-shaped structures that deviate from the traditional compressive structural behavior of masonry domes. Popular usage of the term has expanded to mean "almost any long-span roofing system".
Elements
The word "
cupola
In architecture, a cupola () is a relatively small, most often dome-like, tall structure on top of a building. Often used to provide a lookout or to admit light and air, it usually crowns a larger roof or dome.
The word derives, via Italian, from ...
" is another word for "dome", and is usually used for a small dome upon a roof or
turret
Turret may refer to:
* Turret (architecture), a small tower that projects above the wall of a building
* Gun turret, a mechanism of a projectile-firing weapon
* Objective turret, an indexable holder of multiple lenses in an optical microscope
* Mi ...
. "Cupola" has also been used to describe the inner side of a dome. The top of a dome is the "crown". The inner side of a dome is called the "intrados" and the outer side is called the "extrados". As with arches, the "springing" of a dome is the base level from which the dome rises and the "haunch" is the part that lies roughly halfway between the base and the top. Domes can be supported by an elliptical or circular wall called a "drum". If this structure extends to ground level, the round building may be called a "
rotunda". Drums are also called "
tholobate
In architecture, a tholobate (from el, θολοβάτης, tholobates, dome pedestal) or drum is the upright part of a building on which a dome is raised. It is generally in the shape of a cylinder or a polygonal prism.
In the earlier Byzanti ...
s" and may or may not contain windows. A "
tambour
In classical architecture, a tambour ( Fr.: "drum") is the inverted bell of the Corinthian capital around which are carved acanthus leaves for decoration.
The term also applies to the wall of a circular structure, whether on the ground or rais ...
" or "
lantern
A lantern is an often portable source of lighting, typically featuring a protective enclosure for the light sourcehistorically usually a candle or a wick in oil, and often a battery-powered light in modern timesto make it easier to carry and h ...
" is the equivalent structure over a dome's oculus, supporting a cupola.
When the base of the dome does not match the plan of the supporting walls beneath it (for example, a dome's circular base over a square
bay), techniques are employed to bridge the two. One technique is to use corbelling, progressively projecting horizontal layers from the top of the supporting wall to the base of the dome, such as the corbelled triangles often used in Seljuk and Ottoman architecture. The simplest technique is to use diagonal
lintels
A lintel or lintol is a type of beam (a horizontal structural element) that spans openings such as portals, doors, windows and fireplaces. It can be a decorative architectural element, or a combined ornamented structural item. In the case of ...
across the corners of the walls to create an
octagon
In geometry, an octagon (from the Greek ὀκτάγωνον ''oktágōnon'', "eight angles") is an eight-sided polygon or 8-gon.
A '' regular octagon'' has Schläfli symbol and can also be constructed as a quasiregular truncated square, t, whi ...
al base. Another is to use arches to span the corners, which can support more weight. A variety of these techniques use what are called "
squinch
In architecture, a squinch is a triangular corner that supports the base of a dome. Its visual purpose is to translate a rectangle into an octagon. See also: pendentive.
Construction
A squinch is typically formed by a masonry arch that spans ...
es". A squinch can be a single arch or a set of multiple projecting nested arches placed diagonally over an internal corner. Squinches can take a variety of other forms, as well, including trumpet arches and
niche
Niche may refer to:
Science
*Developmental niche, a concept for understanding the cultural context of child development
*Ecological niche, a term describing the relational position of an organism's species
*Niche differentiation, in ecology, the ...
heads, or half-domes. The invention of
pendentives
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. The pendentives, which are triangular segments of a sphere, taper to points ...
superseded the squinch technique. Pendentives are triangular sections of a sphere, like concave
spandrel
A spandrel is a roughly triangular space, usually found in pairs, between the top of an arch and a rectangular frame; between the tops of two adjacent arches or one of the four spaces between a circle within a square. They are frequently fill ...
s between arches, and transition from the corners of a square bay to the circular base of a dome. The curvature of the pendentives is that of a sphere with a diameter equal to the diagonal of the square bay.
Materials
The earliest domes in the Middle East were built with mud-brick and, eventually, with baked brick and stone. Domes of wood allowed for wide spans due to the relatively light and flexible nature of the material and were the normal method for domed churches by the 7th century, although most domes were built with the other less flexible materials. Wooden domes were protected from the weather by roofing, such as copper or lead sheeting. Domes of cut stone were more expensive and never as large, and timber was used for large spans where brick was unavailable.
Roman concrete used an aggregate of stone with a powerful mortar. The aggregate transitioned over the centuries to pieces of fired clay, then to Roman bricks. By the sixth century, bricks with large amounts of mortar were the principle vaulting materials.
Pozzolana
Pozzolana or pozzuolana ( , ), also known as pozzolanic ash ( la, pulvis puteolanus), is a natural siliceous or siliceous- aluminous material which reacts with calcium hydroxide in the presence of water at room temperature (cf. pozzolanic reactio ...
appears to have only been used in central Italy. Brick domes were the favored choice for large-space monumental coverings until the
Industrial Age, due to their convenience and dependability.
Ties TIES may refer to:
* TIES, Teacher Institute for Evolutionary Science
* TIES, The Interactive Encyclopedia System
* TIES, Time Independent Escape Sequence
* Theoretical Issues in Ergonomics Science
The ''Theoretical Issues in Ergonomics Science' ...
and chains of iron or wood could be used to resist stresses.
The new building materials of the 19th century and a better understanding of the forces within structures from the 20th century opened up new possibilities. Iron and steel beams, steel cables, and pre-stressed concrete eliminated the need for external buttressing and enabled much thinner domes. Whereas earlier masonry domes may have had a radius to thickness ratio of 50, the ratio for modern domes can be in excess of 800. The lighter weight of these domes not only permitted far greater spans, but also allowed for the creation of large movable domes over modern sports stadiums.
Experimental rammed earth domes were made as part of work on
sustainable architecture
Sustainable architecture is architecture that seeks to minimize the negative environmental impact of buildings through improved efficiency and moderation in the use of materials, energy, development space and the ecosystem at large. Sustainable ...
at the
University of Kassel
The University of Kassel (german: link=no, Universität Kassel) is a university founded in 1971 located in Kassel, Hessen, in central Germany. As of February 2022 it had about 25,000 students and about 3300 staff, including more than 300 prof ...
in 1983.
Shapes and internal forces
A masonry dome produces
thrust
Thrust is a reaction force described quantitatively by Newton's third law. When a system expels or accelerates mass in one direction, the accelerated mass will cause a force of equal magnitude but opposite direction to be applied to that syst ...
s downward and outward. They are thought of in terms of two kinds of forces at right angles from one another: meridional forces (like the
meridians, or lines of longitude, on a globe) are
compressive
In continuum mechanics, stress is a physical quantity. It is a quantity that describes the magnitude of forces that cause deformation. Stress is defined as ''force per unit area''. When an object is pulled apart by a force it will cause elon ...
only, and increase towards the base, while hoop forces (like the lines of
latitude
In geography, latitude is a coordinate that specifies the north– south position of a point on the surface of the Earth or another celestial body. Latitude is given as an angle that ranges from –90° at the south pole to 90° at the north pol ...
on a globe) are in compression at the top and
tension
Tension may refer to:
Science
* Psychological stress
* Tension (physics), a force related to the stretching of an object (the opposite of compression)
* Tension (geology), a stress which stretches rocks in two opposite directions
* Voltage or el ...
at the base, with the transition in a hemispherical dome occurring at an angle of 51.8 degrees from the top. The thrusts generated by a dome are directly proportional to the weight of its materials. Grounded hemispherical domes generate significant horizontal thrusts at their haunches.
The outward thrusts in the lower portion of a hemispherical masonry dome can be counteracted with the use of chains incorporated around the circumference or with external buttressing, although cracking along the meridians is natural. For small or tall domes with less horizontal thrust, the thickness of the supporting arches or walls can be enough to resist deformation, which is why drums tend to be much thicker than the domes they support.
Unlike voussoir arches, which require support for each element until the
keystone is in place, domes are stable during construction as each level is made a complete and self-supporting ring. The upper portion of a masonry dome is always in compression and is supported laterally, so it does not collapse except as a whole unit and a range of deviations from the ideal in this shallow upper cap are equally stable. Because voussoir domes have lateral support, they can be made much thinner than corresponding arches of the same span. For example, a hemispherical dome can be 2.5 times thinner than a semicircular arch, and a dome with the profile of an
equilateral arch can be thinner still.
The optimal shape for a masonry dome of equal thickness provides for perfect compression, with none of the tension or bending forces against which masonry is weak. For a particular material, the optimal dome geometry is called the funicular surface, the comparable shape in three dimensions to a
catenary
In physics and geometry, a catenary (, ) is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.
The catenary curve has a U-like shape, superficia ...
curve for a two-dimensional arch. Adding a weight to the top of a pointed dome, such as the heavy cupola at the top of
Florence Cathedral
Florence Cathedral, formally the (; in English Cathedral of Saint Mary of the Flower), is the cathedral of Florence, Italy ( it, Duomo di Firenze). It was begun in 1296 in the Gothic style to a design of Arnolfo di Cambio and was structurally c ...
, changes the optimal shape to more closely match the actual pointed shape of the dome. The pointed profiles of many Gothic domes more closely approximate the optimal dome shape than do hemispheres, which were favored by Roman and Byzantine architects due to the circle being considered the most perfect of forms.
Symbolism
According to E. Baldwin Smith, from the
late Stone Age
The Later Stone Age (LSA) is a period in African prehistory that follows the Middle Stone Age.
The Later Stone Age is associated with the advent of modern human behavior in Africa, although definitions of this concept and means of studying it ar ...
the dome-shaped tomb was used as a reproduction of the ancestral, god-given shelter made permanent as a venerated home of the dead. The instinctive desire to do this resulted in widespread domical mortuary traditions across the ancient world, from the
stupa
A stupa ( sa, स्तूप, lit=heap, ) is a mound-like or hemispherical structure containing relics (such as ''śarīra'' – typically the remains of Buddhist monks or nuns) that is used as a place of meditation.
In Buddhism, circumamb ...
s of
India
India, officially the Republic of India (Hindi: ), is a country in South Asia. It is the seventh-largest country by area, the second-most populous country, and the most populous democracy in the world. Bounded by the Indian Ocean on the so ...
to the
tholos tombs of
Iberia
The Iberian Peninsula (),
**
* Aragonese and Occitan: ''Peninsula Iberica''
**
**
* french: Péninsule Ibérique
* mwl, Península Eibérica
* eu, Iberiar penintsula also known as Iberia, is a peninsula in southwestern Europe, defi ...
. By Hellenistic and Roman times, the domical tholos had become the customary cemetery symbol.
Domes and tent-canopies were also associated with the heavens in Ancient Persia and the Hellenistic-Roman world. A dome over a square base reflected the geometric symbolism of those shapes. The circle represented perfection, eternity, and the heavens. The square represented the earth. An octagon was intermediate between the two. The distinct symbolism of the heavenly or cosmic tent stemming from the royal audience tents of
Achaemenid
The Achaemenid Empire or Achaemenian Empire (; peo, wikt:𐎧𐏁𐏂𐎶, 𐎧𐏁𐏂, , ), also called the First Persian Empire, was an History of Iran#Classical antiquity, ancient Iranian empire founded by Cyrus the Great in 550 BC. Bas ...
and Indian rulers was adopted by Roman rulers in imitation of
Alexander the Great
Alexander III of Macedon ( grc, wikt:Ἀλέξανδρος, Ἀλέξανδρος, Alexandros; 20/21 July 356 BC – 10/11 June 323 BC), commonly known as Alexander the Great, was a king of the Ancient Greece, ancient Greek kingdom of Maced ...
, becoming the imperial
baldachin
A baldachin, or baldaquin (from it, baldacchino), is a canopy of state typically placed over an altar or throne. It had its beginnings as a cloth canopy, but in other cases it is a sturdy, permanent architectural feature, particularly over h ...
. This probably began with
Nero
Nero Claudius Caesar Augustus Germanicus ( ; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68), was the fifth Roman emperor and final emperor of the Julio-Claudian dynasty, reigning from AD 54 un ...
, whose "
Golden House
The Domus Aurea (Latin, "Golden House") was a vast landscaped complex built by the Emperor Nero largely on the Oppian Hill in the heart of ancient Rome after the great fire in 64 AD had destroyed a large part of the city.Roth (1993)
It repla ...
" also made the dome a feature of palace architecture.
The dual sepulchral and heavenly symbolism was adopted by
early Christians
Early Christianity (up to the First Council of Nicaea in 325) spread from the Levant, across the Roman Empire, and beyond. Originally, this progression was closely connected to already established Jewish centers in the Holy Land and the Jewish d ...
in both the use of domes in architecture and in the
ciborium, a domical canopy like the baldachin used as a ritual covering for relics or the
church altar. The celestial symbolism of the dome, however, was the preeminent one by the
Christian era
The terms (AD) and before Christ (BC) are used to label or number years in the Julian and Gregorian calendars. The term is Medieval Latin and means 'in the year of the Lord', but is often presented using "our Lord" instead of "the Lord", ...
. In the early centuries of Islam, domes were closely associated with royalty. A dome built in front of the mihrab of a mosque, for example, was at least initially meant to emphasize the place of a prince during royal ceremonies. Over time such domes became primarily focal points for decoration or the direction of prayer. The use of domes in mausoleums can likewise reflect royal patronage or be seen as representing the honor and prestige that domes symbolized, rather than having any specific funerary meaning. The wide variety of dome forms in medieval Islam reflected dynastic, religious, and social differences as much as practical building considerations.
Acoustics
Because domes are concave from below, they can reflect sound and create echoes. A dome may have a "
whispering gallery
The Whispering Gallery of St Paul's Cathedral, London
A whispering gallery is usually a circular, hemispherical, elliptical or ellipsoidal enclosure, often beneath a dome or a vault, in which whispers can be heard clearly in other parts of t ...
" at its base that at certain places transmits distinct sound to other distant places in the gallery. The half-domes over the apses of Byzantine churches helped to project the
chant
A chant (from French ', from Latin ', "to sing") is the iterative speaking or singing of words or sounds, often primarily on one or two main pitches called reciting tones. Chants may range from a simple melody involving a limited set of notes ...
s of the clergy. Although this can complement music, it may make speech less intelligible, leading
Francesco Giorgi
Francesco Giorgi Veneto (1466–1540) was an Italians, Italian Franciscan friar, and author of the work ''De harmonia mundi totius'' from 1525. In it Giorgio proposed an idea of the Universe created according to the universal system of proportion ...
in 1535 to recommend vaulted ceilings for the choir areas of a church, but a flat ceiling filled with as many coffers as possible for where preaching would occur.
Cavities in the form of jars built into the inner surface of a dome may serve to compensate for this interference by diffusing sound in all directions, eliminating echoes while creating a "divine effect in the atmosphere of worship." This technique was written about by
Vitruvius
Vitruvius (; c. 80–70 BC – after c. 15 BC) was a Roman architect and engineer during the 1st century BC, known for his multi-volume work entitled ''De architectura''. He originated the idea that all buildings should have three attribute ...
in his
''Ten Books on Architecture'', which describes bronze and earthenware resonators. The material, shape, contents, and placement of these
cavity resonators determine the effect they have: reinforcing certain frequencies or absorbing them.
Types
Beehive dome
Also called a ''corbelled dome'', or ''false dome'', these are different from a 'true dome' in that they consist of purely horizontal layers. As the layers get higher, each is slightly
cantilever
A cantilever is a rigid structural element that extends horizontally and is supported at only one end. Typically it extends from a flat vertical surface such as a wall, to which it must be firmly attached. Like other structural elements, a canti ...
ed, or
corbel
In architecture, a corbel is a structural piece of stone, wood or metal jutting from a wall to carry a superincumbent weight, a type of bracket. A corbel is a solid piece of material in the wall, whereas a console is a piece applied to the s ...
ed, toward the center until meeting at the top. A monumental example is the Mycenaean
Treasury of Atreus
The Treasury of Atreus or Tomb of Agamemnon is a large ''tholos'' or beehive tomb constructed between 1350 and 1250 BC in Mycenae, Greece.Wace, A. J. (1940). The Treasury of Atreus. ''Antiquity, 14'', 233. ISSN 0003-598X The tomb was used for an un ...
from the late
Bronze Age
The Bronze Age is a historic period, lasting approximately from 3300 BC to 1200 BC, characterized by the use of bronze, the presence of writing in some areas, and other early features of urban civilization. The Bronze Age is the second pri ...
.
Braced dome
A single or double layer
space frame
In architecture and structural engineering, a space frame or space structure ( 3D truss) is a rigid, lightweight, truss-like structure constructed from interlocking struts in a geometric pattern. Space frames can be used to span large areas with ...
in the form of a dome, a ''braced dome'' is a generic term that includes ''ribbed'', ''
Schwedler'', ''three-way grid'', ''lamella'' or ''Kiewitt'', ''lattice'', and ''
geodesic
In geometry, a geodesic () is a curve representing in some sense the shortest path ( arc) between two points in a surface, or more generally in a Riemannian manifold. The term also has meaning in any differentiable manifold with a connection. ...
domes''. The different terms reflect different arrangements in the surface members. Braced domes often have a very low weight and are usually used to cover spans of up to 150 meters. Often prefabricated, their component members can either lie on the dome's surface of revolution, or be straight lengths with the connecting points or nodes lying upon the surface of revolution. Single-layer structures are called ''frame'' or ''skeleton'' types and double-layer structures are ''truss'' types, which are used for large spans. When the covering also forms part of the structural system, it is called a ''stressed skin'' type. The ''formed surface'' type consists of sheets joined together at bent edges to form the structure.
Cloister vault
Also called ''domical vaults'' (a term sometimes also applied to sail vaults), ''polygonal domes'', ''coved domes'', ''gored domes'', ''segmental domes'' (a term sometimes also used for saucer domes), ''paneled vaults'', or ''pavilion vaults'', these are domes that maintain a polygonal shape in their horizontal cross section. The earliest known examples date to the first century BC, such as the
Tabularium
The Tabularium was the official records office of ancient Rome and housed the offices of many city officials. Situated within the Roman Forum, it was on the front slope of the Capitoline Hill, below the Temple of Jupiter Optimus Maximus, to the ...
of Rome from 78 BC. Others include the Baths of Antoninus in
Carthage
Carthage was the capital city of Ancient Carthage, on the eastern side of the Lake of Tunis in what is now Tunisia. Carthage was one of the most important trading hubs of the Ancient Mediterranean and one of the most affluent cities of the classi ...
(145–160) and the
Palatine Chapel at Aachen
The Palatine Chapel in Aachen is an early medieval chapel and remaining component of Charlemagne's Palace of Aachen in what is now Germany. Although the palace itself no longer exists, the chapel was preserved and now forms the central part of ...
(13th – 14th century). The most famous example is the Renaissance octagonal dome of Filippo Brunelleschi over the Florence Cathedral.
Thomas Jefferson
Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 18 ...
, the third president of the United States, installed an octagonal dome above the West front of his plantation house,
Monticello
Monticello ( ) was the primary plantation of Founding Father Thomas Jefferson, the third president of the United States, who began designing Monticello after inheriting land from his father at age 26. Located just outside Charlottesville, V ...
.
Compound dome
Also called ''domes on pendentives'' or ''pendentive domes'' (a term also applied to sail vaults), compound domes have pendentives that support a smaller diameter dome immediately above them, as in the Hagia Sophia, or a drum and dome, as in many Renaissance and post-Renaissance domes, with both forms resulting in greater height.
Crossed-arch dome
One of the earliest types of ribbed vault, the first known examples are found in the
Great Mosque of Córdoba
Great may refer to: Descriptions or measurements
* Great, a relative measurement in physical space, see Size
* Greatness, being divine, majestic, superior, majestic, or transcendent
People
* List of people known as "the Great"
*Artel Great (born ...
in the 10th century. Rather than meeting in the center of the dome, the ribs characteristically intersect one another off-center, forming an empty polygonal space in the center. Geometry is a key element of the designs, with the octagon being perhaps the most popular shape used. Whether the arches are structural or purely decorative remains a matter of debate. The type may have an eastern origin, although the issue is also unsettled. Examples are found in Spain, North Africa, Armenia, Iran, France, and Italy.
Ellipsoidal dome
The ellipsoidal dome is a surface formed by the rotation around a vertical axis of a
semi-ellipse
In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. It generalizes a circle, which is the special type of ellipse in ...
. Like other "rotational domes" formed by the rotation of a curve around a vertical axis, ellipsoidal domes have circular bases and horizontal sections and are a type of "circular dome" for that reason.
Geodesic dome
''Geodesic domes'' are the upper portion of geodesic spheres. They are composed of a framework of triangles in a
polyhedron
In geometry, a polyhedron (plural polyhedra or polyhedrons; ) is a three-dimensional shape with flat polygonal faces, straight edges and sharp corners or vertices.
A convex polyhedron is the convex hull of finitely many points, not all on th ...
pattern. The structures are named for
geodesic
In geometry, a geodesic () is a curve representing in some sense the shortest path ( arc) between two points in a surface, or more generally in a Riemannian manifold. The term also has meaning in any differentiable manifold with a connection. ...
s and are based upon geometric shapes such as
icosahedron
In geometry, an icosahedron ( or ) is a polyhedron with 20 faces. The name comes and . The plural can be either "icosahedra" () or "icosahedrons".
There are infinitely many non- similar shapes of icosahedra, some of them being more symmetrica ...
s,
octahedron
In geometry, an octahedron (plural: octahedra, octahedrons) is a polyhedron with eight faces. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at ea ...
s or
tetrahedron
In geometry, a tetrahedron (plural: tetrahedra or tetrahedrons), also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. The tetrahedron is the simplest of all the o ...
s. Such domes can be created using a limited number of simple elements and joints and efficiently resolve a dome's internal forces. Their efficiency is said to increase with size. Although not first invented by
Buckminster Fuller
Richard Buckminster Fuller (; July 12, 1895 – July 1, 1983) was an American architect, systems theorist, writer, designer, inventor, philosopher, and futurist. He styled his name as R. Buckminster Fuller in his writings, publishing more t ...
, they are associated with him because he designed many geodesic domes and patented them in the United States.
Hemispherical dome
The ''hemispherical dome'' is a surface formed by the rotation around a vertical axis of a
semicircle
In mathematics (and more specifically geometry), a semicircle is a one-dimensional locus of points that forms half of a circle. The full arc of a semicircle always measures 180° (equivalently, radians, or a half-turn). It has only one line of ...
. Like other "rotational domes" formed by the rotation of a curve around a vertical axis, hemispherical domes have circular bases and horizontal sections and are a type of "circular dome" for that reason. They experience vertical compression along their meridians, but horizontally experience compression only in the portion above 51.8 degrees from the top. Below this point, hemispherical domes experience tension horizontally, and usually require buttressing to counteract it. According to E. Baldwin Smith, it was a shape likely known to the Assyrians, defined by Greek theoretical mathematicians, and standardized by Roman builders.
Onion dome
''Bulbous domes'' bulge out beyond their base diameters, offering a profile greater than a hemisphere. An ''onion dome'' is a greater than hemispherical dome with a pointed top in an
ogee
An ogee ( ) is the name given to objects, elements, and curves—often seen in architecture and building trades—that have been variously described as serpentine-, extended S-, or sigmoid-shaped. Ogees consist of a "double curve", the combinatio ...
profile. They are found in the
Near East
The ''Near East''; he, המזרח הקרוב; arc, ܕܢܚܐ ܩܪܒ; fa, خاور نزدیک, Xāvar-e nazdik; tr, Yakın Doğu is a geographical term which roughly encompasses a transcontinental region in Western Asia, that was once the hist ...
,
Middle East
The Middle East ( ar, الشرق الأوسط, ISO 233: ) is a geopolitical region commonly encompassing Arabian Peninsula, Arabia (including the Arabian Peninsula and Bahrain), Anatolia, Asia Minor (Asian part of Turkey except Hatay Pro ...
, Persia, and India and may not have had a single point of origin. Their appearance in northern Russian architecture predates the
Tatar occupation of Russia and so is not easily explained as the result of that influence. They became popular in the second half of the 15th century in the
Low Countries
The term Low Countries, also known as the Low Lands ( nl, de Lage Landen, french: les Pays-Bas, lb, déi Niddereg Lännereien) and historically called the Netherlands ( nl, de Nederlanden), Flanders, or Belgica, is a coastal lowland region in N ...
of Northern Europe, possibly inspired by the finials of
minaret
A minaret (; ar, منارة, translit=manāra, or ar, مِئْذَنة, translit=miʾḏana, links=no; tr, minare; fa, گلدسته, translit=goldaste) is a type of tower typically built into or adjacent to mosques. Minarets are generall ...
s in Egypt and Syria, and developed in the 16th and 17th centuries in the Netherlands before spreading to Germany, becoming a popular element of the baroque architecture of Central Europe. German bulbous domes were also influenced by Russian and Eastern European domes. The examples found in various European architectural styles are typically wooden. Examples include Kazan Church in
Kolomenskoye
Kolomenskoye (russian: Коло́менское) is a former royal estate situated several kilometers to the southeast of the city center of Moscow, Russia, on the ancient road leading to the town of Kolomna (hence the name). The 390 hectare ...
and the
Brighton Pavilion
The Royal Pavilion, and surrounding gardens, also known as the Brighton Pavilion, is a Grade I listed former royal residence located in Brighton, England. Beginning in 1787, it was built in three stages as a seaside retreat for George, Pri ...
by
John Nash. In Islamic architecture, they are typically made of masonry, rather than timber, with the thick and heavy bulging portion serving to buttress against the tendency of masonry domes to spread at their bases. The Taj Mahal is a famous example.
Oval dome
An ''oval dome'' is a dome of
oval
An oval () is a closed curve in a plane which resembles the outline of an egg. The term is not very specific, but in some areas (projective geometry, technical drawing, etc.) it is given a more precise definition, which may include either one or ...
shape in plan, profile, or both. The term comes from the Latin ''ovum'', meaning "egg". The earliest oval domes were used by convenience in corbelled stone huts as rounded but geometrically undefined coverings, and the first examples in Asia Minor date to around 4000 B.C. The geometry was eventually defined using combinations of circular arcs, transitioning at points of tangency. If the Romans created oval domes, it was only in exceptional circumstances. The Roman foundations of the oval plan
Church of St. Gereon in Cologne point to a possible example. Domes in the Middle Ages also tended to be circular, though the church of
Santo Tomás de las Ollas
The Santo Tomás de las Ollas hermitage is situated in the town with the same name close to Ponferrada, León (Spain).
History
The name of the hermitage, taken from the town Santo Tomás de las Ollas (St. Thomas of the ''Ollas''), comes from ...
in Spain has an oval dome over its oval plan. Other examples of medieval oval domes can be found covering rectangular bays in churches. Oval plan churches became a type in the
Renaissance
The Renaissance ( , ) , from , with the same meanings. is a period in European history marking the transition from the Middle Ages to modernity and covering the 15th and 16th centuries, characterized by an effort to revive and surpass ideas ...
and popular in the
Baroque
The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including t ...
style. The dome built for the basilica of
Vicoforte
Vicoforte is a ''comune'' in the Province of Cuneo in Italy. It is located in Val Corsaglia at above sea level, east of Cuneo and from Mondovì.
It is known mainly for the Santuario di Vicoforte, built between 1596 and 1733 to honour the Virgin ...
by Francesco Gallo was one of the largest and most complex ever made. Although the ellipse was known, in practice, domes of this shape were created by combining segments of circles. Popular in the 16th and 17th centuries, oval and elliptical plan domes can vary their dimensions in three axes or two axes. A sub-type with the long axis having a semicircular section is called a Murcia dome, as in the Chapel of the Junterones at
Murcia Cathedral
The Cathedral Church of Saint Mary in Murcia (Spanish: ''Iglesia Catedral de Santa María en Murcia''), commonly called the Cathedral of Murcia, is a Catholic church in the city of Murcia, Spain. It is the cathedral of the Roman Catholic Diocese ...
. When the short axis has a semicircular section, it is called a Melon dome.
Paraboloid dome
A
paraboloid
In geometry, a paraboloid is a quadric surface that has exactly one axis of symmetry and no center of symmetry. The term "paraboloid" is derived from parabola, which refers to a conic section that has a similar property of symmetry.
Every plane ...
dome is a surface formed by the rotation around a vertical axis of a sector of a parabola. Like other "rotational domes" formed by the rotation of a curve around a vertical axis, paraboloid domes have circular bases and horizontal sections and are a type of "circular dome" for that reason. Because of their shape, paraboloid domes experience only compression, both radially and horizontally.
Sail dome
Also called ''sail vaults'', ''handkerchief vaults'', ''domical vaults'' (a term sometimes also applied to cloister vaults), ''pendentive domes'' (a term that has also been applied to compound domes), ''Bohemian vaults'', or ''Byzantine domes'', this type can be thought of as
pendentives
In architecture, a pendentive is a constructional device permitting the placing of a circular dome over a square room or of an elliptical dome over a rectangular room. The pendentives, which are triangular segments of a sphere, taper to points ...
that, rather than merely touching each other to form a circular base for a drum or compound dome, smoothly continue their curvature to form the dome itself. The dome gives the impression of a square sail pinned down at each corner and billowing upward. These can also be thought of as saucer domes upon pendentives. Sail domes are based upon the shape of a hemisphere and are not to be confused with
elliptic parabolic vaults, which appear similar but have different characteristics. In addition to semicircular sail vaults there are variations in geometry such as a low rise to span ratio or covering a rectangular plan. Sail vaults of all types have a variety of thrust conditions along their borders, which can cause problems, but have been widely used from at least the sixteenth century. The second floor of the
Llotja de la Seda
The Lonja de la Seda or Llotja de la Seda (, English "Silk Exchange") is a late Valencian Gothic-style civil building in Valencia, Spain. It is a principal tourist attraction in the city.
History
Built between 1482 and 1533, la Lonja is composed ...
is covered by a series of nine meter wide sail vaults.
Saucer dome
Also called ''segmental domes'' (a term sometimes also used for cloister vaults), or ''calottes'', these have profiles of
less than half a circle. Because they reduce the portion of the dome in tension, these domes are strong but have increased radial thrust. Many of the largest existing domes are of this shape.
Masonry saucer domes, because they exist entirely in compression, can be built much thinner than other dome shapes without becoming unstable. The trade-off between the proportionately increased horizontal thrust at their abutments and their decreased weight and quantity of materials may make them more economical, but they are more vulnerable to damage from movement in their supports.
Umbrella dome
Also called ''gadrooned'', ''fluted'', ''organ-piped'', ''pumpkin'', ''melon'', ''ribbed'', ''parachute'', ''scalloped'', or ''lobed'' domes, these are a type of dome divided at the base into curved segments, which follow the curve of the
elevation
The elevation of a geographic location is its height above or below a fixed reference point, most commonly a reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface (see Geodetic datum § Vert ...
. "Fluted" may refer specifically to this pattern as an external feature, such as was common in
Mamluk Egypt
The Mamluk Sultanate ( ar, سلطنة المماليك, translit=Salṭanat al-Mamālīk), also known as Mamluk Egypt or the Mamluk Empire, was a state that ruled Egypt, the Levant and the Hejaz (western Arabia) from the mid-13th to early 16th ...
. The "ribs" of a dome are the radial lines of masonry that extend from the crown down to the springing. The central dome of the
Hagia Sophia
Hagia Sophia ( 'Holy Wisdom'; ; ; ), officially the Hagia Sophia Grand Mosque ( tr, Ayasofya-i Kebir Cami-i Şerifi), is a mosque and major cultural and historical site in Istanbul, Turkey. The cathedral was originally built as a Greek Ortho ...
uses the ribbed method, which accommodates a ring of windows between the ribs at the base of the dome. The central dome of
St. Peter's Basilica
The Papal Basilica of Saint Peter in the Vatican ( it, Basilica Papale di San Pietro in Vaticano), or simply Saint Peter's Basilica ( la, Basilica Sancti Petri), is a church built in the Renaissance style located in Vatican City, the papal e ...
also uses this method.
History
Early history and simple domes
![Apache Wickiup, Edward Curtis, 1903](https://upload.wikimedia.org/wikipedia/commons/5/54/Apache_Wickiup%2C_Edward_Curtis%2C_1903.jpg)
Cultures from
pre-history
Prehistory, also known as pre-literary history, is the period of human history between the use of the first stone tools by hominins 3.3 million years ago and the beginning of recorded history with the invention of writing systems. The use of ...
to modern times constructed domed dwellings using local materials. Although it is not known when the first dome was created, sporadic examples of early domed structures have been discovered. The earliest discovered may be four small dwellings made of
Mammoth
A mammoth is any species of the extinct elephantid genus ''Mammuthus'', one of the many genera that make up the order of trunked mammals called proboscideans. The various species of mammoth were commonly equipped with long, curved tusks and, ...
tusks and bones. The first was found by a farmer in
Mezhirich, Ukraine, in 1965 while he was digging in his cellar and archaeologists unearthed three more. They date from 19,280 – 11,700 BC.
In
modern times, the creation of relatively simple dome-like structures has been documented among various indigenous peoples around the world. The
wigwam
A wigwam, wickiup, wetu (Wampanoag), or wiigiwaam (Ojibwe, in syllabics: ) is a semi-permanent domed dwelling formerly used by certain Native American tribes and First Nations people and still used for ceremonial events. The term ''wickiup'' ...
was made by
Native Americans using arched branches or poles covered with grass or hides. The
Efé people
The Efé are a group of part-time hunter-gatherer people living in the Ituri Rainforest of the Democratic Republic of Congo. In the depths of the forest they do not wear much clothing, using only leaf huts as shelter for their bodies in the inte ...
of central Africa construct similar
structures
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as ...
, using leaves as shingles. Another example is the
igloo
An igloo (Inuit languages: , Inuktitut syllabics (plural: )), also known as a snow house or snow hut, is a type of shelter built of suitable snow.
Although igloos are often associated with all Inuit, they were traditionally used only b ...
, a shelter built from blocks of compact snow and used by the
Inuit
Inuit (; iu, ᐃᓄᐃᑦ 'the people', singular: Inuk, , dual: Inuuk, ) are a group of culturally similar indigenous peoples inhabiting the Arctic and subarctic regions of Greenland, Labrador, Quebec, Nunavut, the Northwest Territories ...
, among others. The
Himba people
The Himba (singular: OmuHimba, plural: OvaHimba) are an indigenous people with an estimated population of about 50,000 people living in northern Namibia, in the Kunene Region (formerly Kaokoland) and on the other side of the Kunene River in sout ...
of
Namibia
Namibia (, ), officially the Republic of Namibia, is a country in Southern Africa. Its western border is the Atlantic Ocean. It shares land borders with Zambia and Angola to the north, Botswana to the east and South Africa to the south and ea ...
construct "desert igloos" of
wattle and daub
Wattle and daub is a composite building method used for making walls and buildings, in which a woven lattice of wooden strips called wattle is daubed with a sticky material usually made of some combination of wet soil, clay, sand, animal dung a ...
for use as temporary shelters at seasonal cattle camps, and as permanent homes by the poor. Extraordinarily thin
domes of sun-baked clay 20 feet in diameter, 30 feet high, and nearly parabolic in curve, are known from
Cameroon
Cameroon (; french: Cameroun, ff, Kamerun), officially the Republic of Cameroon (french: République du Cameroun, links=no), is a country in west-central Africa. It is bordered by Nigeria to the west and north; Chad to the northeast; the C ...
.
The historical development from structures like these to more sophisticated domes is not well documented. That the dome was known to early
Mesopotamia
Mesopotamia ''Mesopotamíā''; ar, بِلَاد ٱلرَّافِدَيْن or ; syc, ܐܪܡ ܢܗܪ̈ܝܢ, or , ) is a historical region of Western Asia situated within the Tigris–Euphrates river system, in the northern part of the F ...
may explain the existence of domes in both
China
China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous country, with a population exceeding 1.4 billion, slightly ahead of India. China spans the equivalent of five time zones and ...
and
the West
West is a cardinal direction or compass point.
West or The West may also refer to:
Geography and locations
Global context
* The Western world
* Western culture and Western civilization in general
* The Western Bloc, countries allied with NATO ...
in the first millennium BC. Another explanation, however, is that the use of the dome shape in construction did not have a single point of origin and was common in virtually all cultures long before domes were constructed with enduring materials.
Corbelled stone domes have been found from the
Neolithic period
The Neolithic period, or New Stone Age, is an Old World archaeological period and the final division of the Stone Age. It saw the Neolithic Revolution, a wide-ranging set of developments that appear to have arisen independently in several parts ...
in the
ancient Near East
The ancient Near East was the home of early civilizations within a region roughly corresponding to the modern Middle East: Mesopotamia (modern Iraq, southeast Turkey, southwest Iran and northeastern Syria), ancient Egypt, ancient Iran ( Elam, ...
, and in the Middle East to Western Europe from antiquity. The kings of
Achaemenid Persia
The Achaemenid Empire or Achaemenian Empire (; peo, 𐎧𐏁𐏂, , ), also called the First Persian Empire, was an ancient Iranian empire founded by Cyrus the Great in 550 BC. Based in Western Asia, it was contemporarily the largest emp ...
held audiences and festivals in domical tents derived from the nomadic traditions of central Asia. Simple domical mausoleums existed in the Hellenistic period. The remains of a large domed circular hall in the
Parthian Parthian may be:
Historical
* A demonym "of Parthia", a region of north-eastern of Greater Iran
* Parthian Empire (247 BC – 224 AD)
* Parthian language, a now-extinct Middle Iranian language
* Parthian shot, an archery skill famously employed by ...
capital city of
Nyssa has been dated to perhaps the first century AD, showing "...the existence of a monumental domical tradition in Central Asia that had hitherto been unknown and which seems to have preceded Roman Imperial monuments or at least to have grown independently from them." It likely had a wooden dome.
Persian domes
Persian architecture
Iranian architecture or Persian architecture (Persian: معمارى ایرانی, ''Memāri e Irāni'') is the architecture of Iran and parts of the rest of West Asia, the Caucasus and Central Asia. Its history dates back to at least 5,000 BC w ...
likely inherited an architectural tradition of dome-building dating back to the earliest Mesopotamian domes. Due to the scarcity of wood in many areas of the
Iranian plateau
The Iranian plateau or Persian plateau is a geological feature in Western Asia, Central Asia, and South Asia. It comprises part of the Eurasian Plate and is wedged between the Arabian Plate and the Indian Plate; situated between the Zagros ...
and
Greater Iran
Greater Iran ( fa, ایران بزرگ, translit=Irān-e Bozorg) refers to a region covering parts of Western Asia, Central Asia, South Asia, Xinjiang, and the Caucasus, where both Culture of Iran, Iranian culture and Iranian langua ...
, domes were an important part of
vernacular architecture
Vernacular architecture is building done outside any academic tradition, and without professional guidance. This category encompasses a wide range and variety of building types, with differing methods of construction, from around the world, bo ...
throughout Persian history. The Persian invention of the
squinch
In architecture, a squinch is a triangular corner that supports the base of a dome. Its visual purpose is to translate a rectangle into an octagon. See also: pendentive.
Construction
A squinch is typically formed by a masonry arch that spans ...
, a series of concentric arches forming a half-cone over the corner of a room, enabled the transition from the walls of a square chamber to an octagonal base for a dome in a way reliable enough for large constructions and domes moved to the forefront of Persian architecture as a result. Pre-Islamic domes in Persia are commonly semi-elliptical, with pointed domes and those with conical outer shells being the majority of the domes in the Islamic periods.
The area of north-eastern Iran was, along with Egypt, one of two areas notable for early developments in Islamic domed mausoleums, which appear in the tenth century. The
Samanid Mausoleum
The Samanid Mausoleum is a mausoleum located in the northwestern part of Bukhara, Uzbekistan, just outside its historic center. It was built in the 10th century CE as the resting place of the powerful and influential Islamic Samanid dynasty that ...
in
Transoxiana
Transoxiana or Transoxania (Land beyond the Oxus) is the Latin name for a region and civilization located in lower Central Asia roughly corresponding to modern-day eastern Uzbekistan, western Tajikistan, parts of southern Kazakhstan, parts of Tu ...
dates to no later than 943 and is the first to have squinches create a regular octagon as a base for the dome, which then became the standard practice. Cylindrical or polygonal plan tower tombs with conical roofs over domes also exist beginning in the 11th century.
The
Seljuk Empire
The Great Seljuk Empire, or the Seljuk Empire was a high medieval, culturally Turco-Persian tradition, Turko-Persian, Sunni Islam, Sunni Muslim empire, founded and ruled by the Qiniq (tribe), Qïnïq branch of Oghuz Turks. It spanned a total are ...
's notables built tomb-towers, called "Turkish Triangles", as well as cube mausoleums covered with a variety of dome forms. Seljuk domes included conical, semi-circular, and pointed shapes in one or two shells. Shallow semi-circular domes are mainly found from the Seljuk era. The double-shell domes were either discontinuous or continuous. The domed enclosure of the
Jameh Mosque of Isfahan
The Jāmeh Mosque of Isfahān or Jāme' Mosque of Isfahān ( fa, مسجد جامع اصفهان ''Masjid-e-Jāmeh Isfahān''), also known as the Atiq Mosque () and the Friday Mosque of Isfahān (), is a historic congregational mosque (''Jāmeh'' ...
, built in 1086-7 by
Nizam al-Mulk
Abu Ali Hasan ibn Ali Tusi (April 10, 1018 – October 14, 1092), better known by his honorific title of Nizam al-Mulk ( fa, , , Order of the Realm) was a Persian scholar, jurist, political philosopher and Vizier of the Seljuk Empire. Rising fro ...
, was the largest masonry dome in the Islamic world at that time, had eight ribs, and introduced a new form of corner squinch with two quarter domes supporting a short barrel vault. In 1088 Tāj-al-Molk, a rival of Nizam al-Mulk, built another dome at the opposite end of the same mosque with interlacing ribs forming five-pointed stars and pentagons. This is considered the landmark Seljuk dome, and may have inspired subsequent patterning and the domes of the Il-Khanate period. The use of tile and of plain or painted plaster to decorate dome interiors, rather than brick, increased under the Seljuks.
Beginning in the
Ilkhanate
The Ilkhanate, also spelled Il-khanate ( fa, ایل خانان, ''Ilxānān''), known to the Mongols as ''Hülegü Ulus'' (, ''Qulug-un Ulus''), was a khanate established from the southwestern sector of the Mongol Empire. The Ilkhanid realm, ...
, Persian domes achieved their final configuration of structural supports, zone of transition, drum, and shells, and subsequent evolution was restricted to variations in form and shell geometry. Characteristic of these domes are the use of high drums and several types of discontinuous double-shells, and the development of triple-shells and internal stiffeners occurred at this time. The construction of tomb towers decreased. The 7.5 meter wide double dome of
Soltan Bakht Agha Mausoleum
The Soltan Bakht Agha mausoleum( fa, آرامگاه سلطان بخت آقا) is a historical mausoleum in Isfahan, Iran. Soltan Bakht Agha was Shah Sheykh Abu Esshaq's niece. Shah Sheykh Abu Esshaq was a handsome, good-natured but ill-fated Ki ...
(1351–1352) is the earliest known example in which the two shells of the dome have significantly different profiles, which spread rapidly throughout the region. The development of taller drums also continued into the Timurid period. The large, bulbous, fluted domes on tall drums that are characteristic of 15th century Timurid architecture were the culmination of the Central Asian and Iranian tradition of tall domes with glazed tile coverings in blue and other colors.
The domes of the
Safavid dynasty
The Safavid dynasty (; fa, دودمان صفوی, Dudmâne Safavi, ) was one of Iran's most significant ruling dynasties reigning from 1501 to 1736. Their rule is often considered the beginning of modern Iranian history, as well as one of th ...
(1501–1732) are characterized by a distinctive bulbous profile and are considered the last generation of Persian domes. They are generally thinner than earlier domes and are decorated with a variety of colored glazed tiles and complex vegetal patterns, and they were influential on those of other Islamic styles, such as the Mughal architecture of India. An exaggerated style of onion dome on a short drum, as can be seen at the
Shah Cheragh
Shāh Chérāgh ( fa, شاه چراغ) or Shahcheragh Shrine is the tomb of Ahmed bin Musa ( Imam Reza's brother) in the center of Shiraz. It is the third most important shrine in Shia Islam in Iran, after the Imam Reza shrine and Fatima Masu ...
(1852–1853), first appeared in the
Qajar period. Domes have remained important in modern mausoleums, and domed
cisterns
A cistern (Middle English ', from Latin ', from ', "box", from Greek ', "basket") is a waterproof receptacle for holding liquids, usually water. Cisterns are often built to catch and store rainwater. Cisterns are distinguished from wells by t ...
and
icehouses remain common sights in the countryside.
Chinese domes
![Model of the Lei Cheng Uk Han Tomb](https://upload.wikimedia.org/wikipedia/commons/9/92/Model_of_the_Lei_Cheng_Uk_Han_Tomb.jpg)
Very little has survived of ancient
Chinese architecture
Chinese architecture (Chinese:中國建築) is the embodiment of an architectural style that has developed over millennia in China and it has influenced architecture throughout Eastern Asia. Since its emergence during the early ancient era, the ...
, due to the extensive use of timber as a building material. Brick and stone vaults used in tomb construction have survived, and the corbeled dome was used, rarely, in tombs and temples. The earliest true domes found in Chinese tombs were shallow cloister vaults, called ''simian jieding'', derived from the Han use of
barrel vault
A barrel vault, also known as a tunnel vault, wagon vault or wagonhead vault, is an architectural element formed by the extrusion of a single curve (or pair of curves, in the case of a pointed barrel vault) along a given distance. The curves are ...
ing. Unlike the cloister vaults of western Europe, the corners are rounded off as they rise. The first known example is a brick tomb dating from the end of the
Western Han period, near the modern
city of Xiangcheng in
Henan
Henan (; or ; ; alternatively Honan) is a landlocked province of China, in the central part of the country. Henan is often referred to as Zhongyuan or Zhongzhou (), which literally means "central plain" or "midland", although the name is al ...
Province. These four-sided domes used small interlocking bricks and enabled a square space near the entrance of a tomb large enough for several people that may have been used for funeral ceremonies. The interlocking brick technique was rapidly adopted and four-sided domes became widespread outside Henan by the end of the first century AD.
A model of a tomb found with a shallow true dome from the late
Han Dynasty
The Han dynasty (, ; ) was an imperial dynasty of China (202 BC – 9 AD, 25–220 AD), established by Liu Bang (Emperor Gao) and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–207 BC) and a warr ...
(206 BC – 220 AD) can be seen at the Guangzhou Museum (Canton). Another, the
Lei Cheng Uk Han Tomb, found in Hong Kong in 1955, has a design common among Eastern Han Dynasty (25 AD – 220 AD) tombs in South China: a barrel vaulted entrance leading to a domed front hall with barrel vaulted chambers branching from it in a cross shape. It is the only such tomb that has been found in Hong Kong and is exhibited as part of the
Hong Kong Museum of History
The Hong Kong Museum of History is a museum that preserves Hong Kong's historical and cultural heritage. It is located next to the Hong Kong Science Museum, in Tsim Sha Tsui East, Kowloon, Hong Kong.
The collections of the museum encompass ...
.
During the
Three Kingdoms
The Three Kingdoms () from 220 to 280 AD was the tripartite division of China among the dynastic states of Cao Wei, Shu Han, and Eastern Wu. The Three Kingdoms period was preceded by the Han dynasty#Eastern Han, Eastern Han dynasty and wa ...
period (220–280), the "cross-joint dome" (''siyuxuanjinshi'') was developed under the
Wu and
Western Jin
Western may refer to:
Places
*Western, Nebraska, a village in the US
*Western, New York, a town in the US
*Western Creek, Tasmania, a locality in Australia
*Western Junction, Tasmania, a locality in Australia
*Western world, countries that id ...
dynasties south of the
Yangtze River
The Yangtze or Yangzi ( or ; ) is the longest list of rivers of Asia, river in Asia, the list of rivers by length, third-longest in the world, and the longest in the world to flow entirely within one country. It rises at Jari Hill in th ...
, with arcs building out from the corners of a square room until they met and joined at the center. These domes were stronger, had a steeped angle, and could cover larger areas than the relatively shallow cloister vaults. Over time, they were made taller and wider. There were also corbel vaults, called ''diese'', although these are the weakest type. Some tombs of the
Song Dynasty
The Song dynasty (; ; 960–1279) was an imperial dynasty of China that began in 960 and lasted until 1279. The dynasty was founded by Emperor Taizu of Song following his usurpation of the throne of the Later Zhou. The Song conquered the rest ...
(960–1279) have beehive domes.
Roman and Byzantine domes
Roman domes are found in
baths, villas, palaces, and tombs.
oculi
An oculus (; ) is a circular opening in the center of a dome or in a wall. Originating in antiquity, it is a feature of Byzantine and Neoclassical architecture. It is also known as an '' œil-de-boeuf'' from the French, or simply a "bull's- ...
are common features. They are customarily hemispherical in shape and partially or totally concealed on the exterior. To buttress the horizontal thrusts of a large hemispherical masonry dome, the supporting walls were built up beyond the base to at least the haunches of the dome, and the dome was then also sometimes covered with a conical or polygonal roof.
Domes reached monumental size in the Roman
Imperial period. Roman baths played a leading role in the development of domed construction in general, and monumental domes in particular. Modest domes in baths dating from the 2nd and 1st centuries BC are seen in
Pompeii
Pompeii (, ) was an ancient city located in what is now the ''comune'' of Pompei near Naples in the Campania region of Italy. Pompeii, along with Herculaneum and many villas in the surrounding area (e.g. at Boscoreale, Stabiae), was buried ...
, in the
cold rooms
Cold is the presence of low temperature, especially in the atmosphere. In common usage, cold is often a subjective perception. A lower bound to temperature is absolute zero, defined as 0.00K on the Kelvin scale, an absolute thermodynamic ...
of the Terme Stabiane and the Terme del Foro. However, the extensive use of domes did not occur before the 1st century AD. The growth of domed construction increases under
Emperor Nero
Nero Claudius Caesar Augustus Germanicus ( ; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68), was the fifth Roman emperor and final emperor of the Julio-Claudian dynasty, reigning from AD 54 unti ...
and
the Flavians in the 1st century AD, and during the 2nd century. Centrally-planned halls become increasingly important parts of palace and palace villa layouts beginning in the 1st century, serving as state banqueting halls, audience rooms, or throne rooms. The
Pantheon
Pantheon may refer to:
* Pantheon (religion), a set of gods belonging to a particular religion or tradition, and a temple or sacred building
Arts and entertainment Comics
*Pantheon (Marvel Comics), a fictional organization
* ''Pantheon'' (Lone S ...
, a temple in Rome completed by
Emperor Hadrian as part of the
Baths of Agrippa
The Baths of Agrippa (Latin: Thermae Agrippae) was a structure of ancient Rome, in what is now Italy, built by Marcus Vipsanius Agrippa. It was the first of the great thermae constructed in the city, and also the first public bath. History
In th ...
, is the most famous, best preserved, and largest Roman dome. Segmented domes, made of radially concave wedges or of alternating concave and flat wedges, appear under Hadrian in the 2nd century and most preserved examples of this style date from this period.
In the 3rd century, Imperial mausoleums began to be built as domed rotundas, rather than as
tumulus
A tumulus (plural tumuli) is a mound of earth and stones raised over a grave or graves. Tumuli are also known as barrows, burial mounds or ''kurgans'', and may be found throughout much of the world. A cairn, which is a mound of stones buil ...
structures or other types, following similar monuments by private citizens. The technique of building lightweight domes with interlocking hollow ceramic tubes further developed in North Africa and Italy in the late third and early fourth centuries. In the 4th century, Roman domes proliferated due to changes in the way domes were constructed, including advances in
centering
Centring, centre, centering"Centering 2, Centring 2" def. 1. Whitney, William Dwight, and Benjamin E. Smith. ''The Century dictionary and cyclopedia''. vol. 2. New York: Century Co., 1901. p. 885., or center is a type of formwork: the temporary str ...
techniques and the use of brick
ribbing Ribbing is a Swedish noble family of medieval origin. which may refer to:
*Adolph Ribbing (1765–1843), Swedish count and politician who took part in the regicide of Gustav III in 1792
*Beata Rosenhane (1638–1674, spouse of Baron Erik Ribbing), ...
. The material of choice in construction gradually transitioned during the 4th and 5th centuries from stone or concrete to lighter brick in thin shells. Baptisteries began to be built in the manner of domed mausoleums during the 4th century in Italy. The octagonal
Lateran baptistery
The domed octagonal Lateran Baptistery ( it, Battistero lateranense) stands somewhat apart from the Archbasilica of Saint John Lateran, Rome, to which it has become joined by later construction. This baptistery was founded by Pope Sixtus III in 44 ...
or the baptistery of the Holy Sepulchre may have been the first, and the style spread during the 5th century. By the 5th century, structures with small-scale domed cross plans existed across the Christian world.
With the end of the
Western Roman Empire
The Western Roman Empire comprised the western provinces of the Roman Empire at any time during which they were administered by a separate independent Imperial court; in particular, this term is used in historiography to describe the period fr ...
, domes became a signature feature of the church architecture of the surviving
Eastern Roman
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
— or "Byzantine" — Empire. 6th-century church building by the
Emperor Justinian
Justinian I (; la, Iustinianus, ; grc-gre, Ἰουστινιανός ; 48214 November 565), also known as Justinian the Great, was the Byzantine emperor from 527 to 565.
His reign is marked by the ambitious but only partly realized '' renova ...
used the domed cross unit on a monumental scale, and his architects made the domed brick-vaulted central plan standard throughout the Roman east. This divergence with the Roman west from the second third of the 6th century may be considered the beginning of a "Byzantine" architecture. Justinian's
Hagia Sophia
Hagia Sophia ( 'Holy Wisdom'; ; ; ), officially the Hagia Sophia Grand Mosque ( tr, Ayasofya-i Kebir Cami-i Şerifi), is a mosque and major cultural and historical site in Istanbul, Turkey. The cathedral was originally built as a Greek Ortho ...
was an original and innovative design with no known precedents in the way it covers a basilica plan with dome and semi-domes. Periodic earthquakes in the region have caused three partial collapses of the dome and necessitated repairs.
![Turkey-3019 - Hagia Sophia (2216460729)](https://upload.wikimedia.org/wikipedia/commons/9/97/Turkey-3019_-_Hagia_Sophia_%282216460729%29.jpg)
"Cross-domed units", a more secure structural system created by bracing a dome on all four sides with broad arches, became a standard element on a smaller scale in later Byzantine church architecture. The
Cross-in-square
A cross-in-square or crossed-dome floor plan, plan was the dominant architectural form of middle- and late-period Byzantine Empire, Byzantine church architecture, churches. It featured a square centre with an internal structure shaped like a cross ...
plan, with a single dome at the crossing or five domes in a quincunx pattern, became widely popular in the
Middle Byzantine period (c. 843–1204). It is the most common church plan from the tenth century until the
fall of Constantinople
The Fall of Constantinople, also known as the Conquest of Constantinople, was the capture of the capital of the Byzantine Empire by the Ottoman Empire. The city fell on 29 May 1453 as part of the culmination of a 53-day siege which had begun o ...
in 1453. Resting domes on circular or polygonal drums pierced with windows eventually became the standard style, with regional characteristics.
In the Byzantine period, domes were normally hemispherical and had, with occasional exceptions, windowed drums. All of the surviving examples in Constantinople are ribbed or pumpkin domes, with the divisions corresponding to the number of windows. Roofing for domes ranged from simple ceramic tile to more expensive, more durable, and more form-fitting lead sheeting. Metal clamps between stone cornice blocks, metal tie rods, and metal chains were also used to stabilize domed construction. The technique of using double shells for domes, although revived in the Renaissance, originated in Byzantine practice.
Arabic and Western European domes
![Dome of the Rock Temple Mount](https://upload.wikimedia.org/wikipedia/commons/b/be/Dome_of_the_Rock_Temple_Mount.jpg)
The Syria and
Palestine
__NOTOC__
Palestine may refer to:
* State of Palestine, a state in Western Asia
* Palestine (region), a geographic region in Western Asia
* Palestinian territories, territories occupied by Israel since 1967, namely the West Bank (including East ...
area has a long tradition of domical architecture, including wooden domes in shapes described as "conoid", or similar to pine cones. When the
Arab Muslim
Arab Muslims ( ar, العرب المسلمون) are adherents of Islam who identify linguistically, culturally, and genealogically as Arabs. Arab Muslims greatly outnumber other ethnoreligious groups in the Middle East and North Africa. Arab Mu ...
forces
conquered the region, they employed local craftsmen for their buildings and, by the end of the 7th century, the dome had begun to become an architectural symbol of
Islam
Islam (; ar, ۘالِإسلَام, , ) is an Abrahamic religions, Abrahamic Monotheism#Islam, monotheistic religion centred primarily around the Quran, a religious text considered by Muslims to be the direct word of God in Islam, God (or ...
. In addition to religious shrines, such as the
Dome of the Rock
The Dome of the Rock ( ar, قبة الصخرة, Qubbat aṣ-Ṣakhra) is an Islamic shrine located on the Temple Mount in the Old City of Jerusalem, a site also known to Muslims as the ''al-Haram al-Sharif'' or the Al-Aqsa Compound. Its initial ...
, domes were used over the audience and throne halls of
Umayyad
The Umayyad Caliphate (661–750 CE; , ; ar, ٱلْخِلَافَة ٱلْأُمَوِيَّة, al-Khilāfah al-ʾUmawīyah) was the second of the four major caliphates established after the death of Muhammad. The caliphate was ruled by the ...
palaces, and as part of porches, pavilions, fountains, towers and the
calderia of baths. Blending the architectural features of both Byzantine and Persian architecture, the domes used both pendentives and squinches and were made in a variety of shapes and materials. Although architecture in the region would decline following the movement of the capital to Iraq under the
Abbasids
The Abbasid Caliphate ( or ; ar, الْخِلَافَةُ الْعَبَّاسِيَّة, ') was the third caliphate to succeed the Islamic prophet Muhammad. It was founded by a dynasty descended from Muhammad's uncle, Abbas ibn Abdul-Muttalib ...
in 750, mosques built after a revival in the late 11th century usually followed the Umayyad model. Early versions of bulbous domes can be seen in mosaic illustrations in Syria dating to the Umayyad period. They were used to cover large buildings in Syria after the eleventh century.
Italian church architecture from the late sixth century to the end of the eighth century was influenced less by the trends of Constantinople than by a variety of Byzantine provincial plans. With the
crowning of
Charlemagne
Charlemagne ( , ) or Charles the Great ( la, Carolus Magnus; german: Karl der Große; 2 April 747 – 28 January 814), a member of the Carolingian dynasty, was King of the Franks from 768, King of the Lombards from 774, and the first Holy ...
as a
new Roman Emperor, Byzantine influences were largely replaced in a revival of earlier Western building traditions. Occasional exceptions include examples of early quincunx churches at
Milan
Milan ( , , Lombard: ; it, Milano ) is a city in northern Italy, capital of Lombardy, and the second-most populous city proper in Italy after Rome. The city proper has a population of about 1.4 million, while its metropolitan city h ...
and near
Cassino
Cassino () is a ''comune'' in the province of Frosinone, Southern Italy, at the southern end of the region of Lazio, the last city of the Latin Valley.
Cassino is located at the foot of Monte Cairo near the confluence of the Gari and Liri rive ...
. Another is the
Palatine Chapel. Its domed octagon design was influenced by Byzantine models. It was the largest dome north of the Alps at that time.
Venice
Venice ( ; it, Venezia ; vec, Venesia or ) is a city in northeastern Italy and the capital of the Veneto Regions of Italy, region. It is built on a group of 118 small islands that are separated by canals and linked by over 400 ...
,
Southern Italy
Southern Italy ( it, Sud Italia or ) also known as ''Meridione'' or ''Mezzogiorno'' (), is a macroregion of the Italian Republic consisting of its southern half.
The term ''Mezzogiorno'' today refers to regions that are associated with the peop ...
and
Sicily
(man) it, Siciliana (woman)
, population_note =
, population_blank1_title =
, population_blank1 =
, demographics_type1 = Ethnicity
, demographics1_footnotes =
, demographi ...
served as outposts of Middle Byzantine architectural influence in Italy.
The
Great Mosque of Córdoba
Great may refer to: Descriptions or measurements
* Great, a relative measurement in physical space, see Size
* Greatness, being divine, majestic, superior, majestic, or transcendent
People
* List of people known as "the Great"
*Artel Great (born ...
contains the first known examples of the crossed-arch dome type. The use of corner squinches to support domes was widespread in Islamic architecture by the 10th and 11th centuries. After the ninth century, mosques in North Africa often have a small decorative dome over the mihrab. Additional domes are sometimes used at the corners of the mihrab wall, at the entrance bay, or on the square tower minarets. Egypt, along with north-eastern Iran, was one of two areas notable for early developments in Islamic mausoleums, beginning in the 10th century. Fatimid mausoleums were mostly simple square buildings covered by a dome. Domes were smooth or ribbed and had a characteristic Fatimid "keel" shape profile.
Domes in
Romanesque architecture
Romanesque architecture is an architectural style of medieval Europe characterized by semi-circular arches. There is no consensus for the beginning date of the Romanesque style, with proposals ranging from the 6th to the 11th century, this lat ...
are generally found within
crossing tower
A crossing, in ecclesiastical architecture, is the junction of the four arms of a cruciform (cross-shaped) church.
In a typically oriented church (especially of Romanesque and Gothic styles), the crossing gives access to the nave on the west, ...
s at the intersection of a church's
nave
The nave () is the central part of a church, stretching from the (normally western) main entrance or rear wall, to the transepts, or in a church without transepts, to the chancel. When a church contains side aisles, as in a basilica-type ...
and
transept
A transept (with two semitransepts) is a transverse part of any building, which lies across the main body of the building. In cruciform churches, a transept is an area set crosswise to the nave in a cruciform ("cross-shaped") building withi ...
, which conceal the domes externally. They are typically octagonal in plan and use corner squinches to translate a square bay into a suitable octagonal base. They appear "in connection with basilicas almost throughout Europe" between 1050 and 1100. The
Crusades
The Crusades were a series of religious wars initiated, supported, and sometimes directed by the Latin Church in the medieval period. The best known of these Crusades are those to the Holy Land in the period between 1095 and 1291 that were in ...
, beginning in 1095, also appear to have influenced domed architecture in Western Europe, particularly in the areas around the
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...
. The
Knights Templar
, colors = White mantle with a red cross
, colors_label = Attire
, march =
, mascot = Two knights riding a single horse
, equipment ...
, headquartered at the site, built a series of centrally planned churches throughout Europe modeled on the Church of the Holy Sepulchre, with the Dome of the Rock also an influence. In southwest France, there are over 250 domed Romanesque churches in the
Périgord
Périgord ( , ; ; oc, Peiregòrd / ) is a natural region and former province of France, which corresponds roughly to the current Dordogne department, now forming the northern part of the administrative region of Nouvelle-Aquitaine. It is div ...
region alone. The use of pendentives to support domes in the
Aquitaine
Aquitaine ( , , ; oc, Aquitània ; eu, Akitania; Poitevin-Saintongeais: ''Aguiéne''), archaic Guyenne or Guienne ( oc, Guiana), is a historical region of southwestern France and a former administrative region of the country. Since 1 January ...
region, rather than the squinches more typical of western medieval architecture, strongly implies a Byzantine influence. Gothic domes are uncommon due to the use of
rib vault
A rib vault or ribbed vault is an architectural feature for covering a wide space, such as a church nave, composed of a framework of crossed or diagonal arched ribs. Variations were used in Roman architecture, Byzantine architecture, Islamic ...
s over naves, and with church crossings usually focused instead by a tall
steeple
In architecture, a steeple is a tall tower on a building, topped by a spire and often incorporating a belfry and other components. Steeples are very common on Christian churches and cathedrals and the use of the term generally connotes a religi ...
, but there are examples of small octagonal crossing domes in cathedrals as the style developed from the Romanesque.
Star-shaped domes found at the
Moorish
The term Moor, derived from the ancient Mauri, is an exonym first used by Christian Europeans to designate the Muslim inhabitants of the Maghreb, the Iberian Peninsula, Sicily and Malta during the Middle Ages.
Moors are not a distinct or se ...
palace of the
Alhambra
The Alhambra (, ; ar, الْحَمْرَاء, Al-Ḥamrāʾ, , ) is a palace and fortress complex located in Granada, Andalusia, Spain. It is one of the most famous monuments of Islamic architecture and one of the best-preserved palaces of the ...
in Granada, Spain, the
Hall of the Abencerrajes (c. 1333–91) and the Hall of the two Sisters (c. 1333–54), are extraordinarily developed examples of
muqarnas
Muqarnas ( ar, مقرنص; fa, مقرنس), also known in Iranian architecture as Ahoopāy ( fa, آهوپای) and in Iberian architecture as Mocárabe, is a form of ornamented vaulting in Islamic architecture. It is the archetypal form of I ...
domes. In the first half of the fourteenth century, stone blocks replaced bricks as the primary building material in the dome construction of
Mamluk Egypt
The Mamluk Sultanate ( ar, سلطنة المماليك, translit=Salṭanat al-Mamālīk), also known as Mamluk Egypt or the Mamluk Empire, was a state that ruled Egypt, the Levant and the Hejaz (western Arabia) from the mid-13th to early 16th ...
and, over the course of 250 years, around 400 domes were built in Cairo to cover the tombs of Mamluk
sultan
Sultan (; ar, سلطان ', ) is a position with several historical meanings. Originally, it was an Arabic abstract noun meaning "strength", "authority", "rulership", derived from the verbal noun ', meaning "authority" or "power". Later, it ...
s and
emir
Emir (; ar, أمير ' ), sometimes transliterated amir, amier, or ameer, is a word of Arabic origin that can refer to a male monarch, aristocrat, holder of high-ranking military or political office, or other person possessing actual or cerem ...
s. Dome profiles were varied, with "keel-shaped", bulbous,
ogee
An ogee ( ) is the name given to objects, elements, and curves—often seen in architecture and building trades—that have been variously described as serpentine-, extended S-, or sigmoid-shaped. Ogees consist of a "double curve", the combinatio ...
, stilted domes, and others being used. On the drum, angles were
chamfer
A chamfer or is a transitional edge between two faces of an object. Sometimes defined as a form of bevel, it is often created at a 45° angle between two adjoining right-angled faces.
Chamfers are frequently used in machining, carpentry, fu ...
ed, or sometimes stepped, externally and triple windows were used in a tri-lobed arrangement on the faces. Bulbous cupolas on minarets were used in Egypt beginning around 1330, spreading to Syria in the following century. In the fifteenth century, pilgrimages to and flourishing trade relations with the
Near East
The ''Near East''; he, המזרח הקרוב; arc, ܕܢܚܐ ܩܪܒ; fa, خاور نزدیک, Xāvar-e nazdik; tr, Yakın Doğu is a geographical term which roughly encompasses a transcontinental region in Western Asia, that was once the hist ...
exposed the
Low Countries
The term Low Countries, also known as the Low Lands ( nl, de Lage Landen, french: les Pays-Bas, lb, déi Niddereg Lännereien) and historically called the Netherlands ( nl, de Nederlanden), Flanders, or Belgica, is a coastal lowland region in N ...
of northwest Europe to the use of bulbous domes in the architecture of the
Orient
The Orient is a term for the East in relation to Europe, traditionally comprising anything belonging to the Eastern world. It is the antonym of ''Occident'', the Western World. In English, it is largely a metonym for, and coterminous with, the c ...
and such domes apparently became associated with the city of Jerusalem. Multi-story spires with truncated bulbous cupolas supporting smaller cupolas or crowns became popular in the sixteenth century.
Russian domes
![Onion domes of Cathedral of the Annunciation](https://upload.wikimedia.org/wikipedia/commons/9/98/Onion_domes_of_Cathedral_of_the_Annunciation.JPG)
The multidomed church is a typical form of Russian church architecture that distinguishes Russia from other Orthodox nations and Christian denominations. Indeed, the earliest Russian churches, built just after the
Christianization of Kievan Rus'
Christianization ( or Christianisation) is to make Christian; to imbue with Christian principles; to become Christian. It can apply to the conversion of an individual, a practice, a place or a whole society. It began in the Roman Empire, conti ...
, were multi-domed, which has led some historians to speculate about how Russian pre-Christian pagan temples might have looked. Examples of these early churches are the 13-domed wooden
Saint Sophia Cathedral in Novgorod
The Cathedral of Holy Wisdom (the Holy Wisdom, Holy Wisdom of God) in Veliky Novgorod is the cathedral church of the Archbishop of Novgorod, Metropolitan of Novgorod and the mother church of the Novgorodian Eparchy.
History
The 38-metre-high, fiv ...
(989) and the 25-domed stone
Desyatinnaya Church
The Church of the Tithes or Church of the Dormition of the Virgin ( uk, Десятинна Церква, ) was the first stone church (building), church in Kyiv.Mariya Lesiv, ''The Return of Ancestral Gods: Modern Ukrainian Paganism as an Alter ...
in
Kiev
Kyiv, also spelled Kiev, is the capital and most populous city of Ukraine. It is in north-central Ukraine along the Dnieper, Dnieper River. As of 1 January 2021, its population was 2,962,180, making Kyiv the List of European cities by populat ...
(989–996). The number of domes typically has a symbolical meaning in
Russian architecture
The architecture of Russia refers to the architecture of modern Russia as well as the architecture of both the original Kievan Rus’ state, the Russian principalities, and Imperial Russia. Due to the geographical size of modern and imperial ...
, for example 13 domes symbolize
Christ
Jesus, likely from he, יֵשׁוּעַ, translit=Yēšūaʿ, label=Hebrew/Aramaic ( AD 30 or 33), also referred to as Jesus Christ or Jesus of Nazareth (among other Names and titles of Jesus in the New Testament, names and titles), was ...
with 12
Apostles, while 25 domes means the same with an additional 12 Prophets of the
Old Testament
The Old Testament (often abbreviated OT) is the first division of the Christian biblical canon, which is based primarily upon the 24 books of the Hebrew Bible or Tanakh, a collection of ancient religious Hebrew writings by the Israelites. The ...
. The multiple domes of Russian churches were often comparatively smaller than
Byzantine
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
domes.
![Tverskoy District, Moscow, Russia - panoramio (610)](https://upload.wikimedia.org/wikipedia/commons/9/96/Tverskoy_District%2C_Moscow%2C_Russia_-_panoramio_%28610%29.jpg)
Plentiful timber in Russia made wooden domes common and at least partially contributed to the popularity of
onion domes
An onion dome is a dome whose shape resembles an onion. Such domes are often larger in diameter than the tholobate upon which they sit, and their height usually exceeds their width. These bulbous structures taper smoothly to a point.
It is a ty ...
, which were easier to shape in wood than in masonry. The earliest stone churches in Russia featured Byzantine style domes, however by the
Early Modern era the onion dome had become the predominant form in traditional
Russian architecture
The architecture of Russia refers to the architecture of modern Russia as well as the architecture of both the original Kievan Rus’ state, the Russian principalities, and Imperial Russia. Due to the geographical size of modern and imperial ...
. The onion dome is a dome whose shape resembles an
onion
An onion (''Allium cepa'' L., from Latin ''cepa'' meaning "onion"), also known as the bulb onion or common onion, is a vegetable that is the most widely cultivated species of the genus ''Allium''. The shallot is a botanical variety of the onion ...
, after which they are named. Such domes are often larger in diameter than the
drum
The drum is a member of the percussion group of musical instruments. In the Hornbostel-Sachs classification system, it is a membranophone. Drums consist of at least one membrane, called a drumhead or drum skin, that is stretched over a she ...
s they sit on, and their height usually exceeds their width. The whole bulbous structure tapers smoothly to a point. Though the earliest preserved Russian domes of such type date from the 16th century, illustrations from older chronicles indicate they have existed since the late 13th century. Like
tented roofs
A tented roof (also known as a pavilion roof) is a type of polygonal hipped roof with steeply pitched slopes rising to a peak. W. Dean EastmanHometown Handbook: Architecture./ref> Tented roofs, a hallmark of medieval religious architecture, wer ...
—which were combined with, and sometimes replaced domes in Russian architecture since the 16th century—onion domes initially were used only in wooden churches. Builders introduced them into stone architecture much later, and continued to make their carcasses of either of wood or metal on top of masonry drums.
Russian domes are often
gilded
Gilding is a decorative technique for applying a very thin coating of gold over solid surfaces such as metal (most common), wood, porcelain, or stone. A gilded object is also described as "gilt". Where metal is gilded, the metal below was tradi ...
or brightly painted. A dangerous technique of chemical
gilding
Gilding is a decorative technique for applying a very thin coating of gold over solid surfaces such as metal (most common), wood, porcelain, or stone. A gilded object is also described as "gilt". Where metal is gilded, the metal below was tradi ...
using
mercury
Mercury commonly refers to:
* Mercury (planet), the nearest planet to the Sun
* Mercury (element), a metallic chemical element with the symbol Hg
* Mercury (mythology), a Roman god
Mercury or The Mercury may also refer to:
Companies
* Merc ...
had been applied on some occasions until the mid-19th century, most notably in the giant dome of
Saint Isaac's Cathedral
Saint Isaac's Cathedral or Isaakievskiy Sobor (russian: Исаа́киевский Собо́р) is a large architectural landmark cathedral that currently functions as a museum with occasional church services in Saint Petersburg, Russia. It is ...
. The more modern and safe method of
gold
Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile met ...
electroplating
Electroplating, also known as electrochemical deposition or electrodeposition, is a process for producing a metal coating on a solid substrate through the reduction of cations of that metal by means of a direct electric current. The part to be ...
was applied for the first time in gilding the domes of the
Cathedral of Christ the Saviour
The Cathedral of Christ the Saviour ( rus, Храм Христа́ Спаси́теля, r=Khram Khristá Spasítelya, p=xram xrʲɪˈsta spɐˈsʲitʲɪlʲə) is a Russian Orthodox cathedral in Moscow, Russia, on the northern bank of the Moskv ...
in
Moscow
Moscow ( , US chiefly ; rus, links=no, Москва, r=Moskva, p=mɐskˈva, a=Москва.ogg) is the capital and largest city of Russia. The city stands on the Moskva River in Central Russia, with a population estimated at 13.0 million ...
, the
tallest Eastern Orthodox church in the world.
Ottoman domes
![Selimiye Mosque, Dome](https://upload.wikimedia.org/wikipedia/commons/3/31/Selimiye_Mosque%2C_Dome.jpg)
The rise of the
Ottoman Empire
The Ottoman Empire, * ; is an archaic version. The definite article forms and were synonymous * and el, Оθωμανική Αυτοκρατορία, Othōmanikē Avtokratoria, label=none * info page on book at Martin Luther University) ...
and its spread in
Asia Minor
Anatolia, tr, Anadolu Yarımadası), and the Anatolian plateau, also known as Asia Minor, is a large peninsula in Western Asia and the westernmost protrusion of the Asian continent. It constitutes the major part of modern-day Turkey. The re ...
and the
Balkans
The Balkans ( ), also known as the Balkan Peninsula, is a geographical area in southeastern Europe with various geographical and historical definitions. The region takes its name from the Balkan Mountains that stretch throughout the who ...
coincided with the decline of the
Seljuk Turks
The Seljuk dynasty, or Seljukids ( ; fa, سلجوقیان ''Saljuqian'', alternatively spelled as Seljuqs or Saljuqs), also known as Seljuk Turks, Seljuk Turkomans "The defeat in August 1071 of the Byzantine emperor Romanos Diogenes
by the Turk ...
and the
Byzantine Empire
The Byzantine Empire, also referred to as the Eastern Roman Empire or Byzantium, was the continuation of the Roman Empire primarily in its eastern provinces during Late Antiquity and the Middle Ages, when its capital city was Constantinopl ...
. Early Ottoman buildings, for almost two centuries after 1300, were characterized by a blending of Ottoman culture and indigenous architecture, and the pendentive dome was used throughout the empire. The Byzantine dome form was adopted and further developed. Ottoman architecture made exclusive use of the semi-spherical dome for vaulting over even very small spaces, influenced by the earlier traditions of both
Byzantine Anatolia
Byzantine Anatolia refers to the peninsula of Anatolia (modern day Turkey) during the rule of the Byzantine Empire. Anatolia would prove to be of vital importance to the empire following the Arabic conquest of the Levant and of Egypt during the ...
and
Central Asia
Central Asia, also known as Middle Asia, is a subregion, region of Asia that stretches from the Caspian Sea in the west to western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. It includes t ...
. The smaller the structure, the simpler the plan, but mosques of medium size were also covered by single domes. The earliest Ottoman mosques were single oblong rooms with either simple tiled pitched roofs of wood or a wooden interior dome. Most of these wooden domes have been lost to fires and replaced by flat ceilings. The earliest masonry domes covered square single room mosques, the archetype of Ottoman architecture. Examples include the Mosque of Orhan Gazi in
Gebze
Gebze (,) is a district in Kocaeli Province, Turkey. It is situated 65 km (30 mi) southeast of Istanbul, on the Gulf of Izmit, the eastern arm of the Sea of Marmara. Gebze is the largest district per population size in the province as o ...
and
Karagöz Bey Mosque in
Mostar
Mostar (, ; sr-Cyrl, Мостар, ) is a city and the administrative center of Herzegovina-Neretva Canton of the Federation of Bosnia and Herzegovina, an entity of Bosnia and Herzegovina, and the historical capital of Herzegovina.
Mostar is sit ...
. This domed-square unit is the defining element of the three basic Ottoman mosque plans: the single unit mosque, multi-unit mosque, and eyvan (or "
iwan
An iwan ( fa, ایوان , ar, إيوان , also spelled ivan) is a rectangular hall or space, usually vaulted, walled on three sides, with one end entirely open. The formal gateway to the iwan is called , a Persian term for a portal projecting ...
") mosque.
The multi-unit mosque uses several domed-squares of similar size along the length of a mosque, or across its width, or both, with the central dome sometimes larger than the others. A style common in the
Bursa period, and known as the "Bursa type", is like a duplication of the single-domed square, with one long space divided by an arch into two square bays that are each covered by a dome. A variation of this type has the room covered by one dome and one semi-dome, with additional side chambers. A multi-domed style derived from
Seljuk architecture
Seljuk architecture comprises the building traditions that developed under the Seljuk dynasty, when it ruled most of the Middle East and Anatolia during the 11th to 13th centuries. The Great Seljuk Empire (11th-12th centuries) contributed signif ...
is that of the
Ulu Camii, or Great Mosque, which consists of a number of domes of the same size supported by pillars.
The eyvan mosque type (the eyvan being derived from Seljuk architecture) uses domed-square units in a variety of sizes, heights, and details, with only the possible pair of side units being similar sizes.
Early experiments with large domes include the domed square mosques of
Çine
Çine is a town and a district of Aydın Province, in the Aegean region of Turkey, from the city of Aydın, on the road to Muğla.
History
Throughout the ages this area has belonged to the Ionians, Caria, Lydians, Persia, Ancient Rome and ...
and
Mudurnu
Mudurnu is a small town and a district of Bolu Province in the Black Sea region of Turkey, 52 km south-west of the city of Bolu. It covers an area of 1,349 km², and the population (2011) is 20,528 of which 4,936 live in the town of Mudur ...
under
Bayezid I
Bayezid I ( ota, بايزيد اول, tr, I. Bayezid), also known as Bayezid the Thunderbolt ( ota, link=no, یلدیرم بايزيد, tr, Yıldırım Bayezid, link=no; – 8 March 1403) was the Ottoman Sultan from 1389 to 1402. He adopted ...
, and the later domed "zawiya-mosques" at Bursa. The
Üç Şerefeli Mosque
The Üç Şerefeli Mosque ( tr, Üç Şerefeli Camii) is a 15th-century Ottoman mosque in Edirne, Turkey.
History
The Üç Şerefeli Mosque was commissioned by Ottoman sultan Murad II (1421–1444,1446– 1451), and built between 1438 and 1447. ...
at Edirne developed the idea of the central dome being a larger version of the domed modules used throughout the rest of the structure to generate open space. This idea became important to the Ottoman style as it developed.
![P1020390](https://upload.wikimedia.org/wikipedia/commons/1/14/Exterior_of_Sultan_Ahmed_I_Mosque%2C_%28old_name_P1020390.jpg%29.jpg)
The
Beyazidiye Mosque (1501–1506) in Istanbul begins the
Classical period in Ottoman architecture, in which the great
Imperial Mosques, with variations, resemble the former Byzantine basilica of
Hagia Sophia
Hagia Sophia ( 'Holy Wisdom'; ; ; ), officially the Hagia Sophia Grand Mosque ( tr, Ayasofya-i Kebir Cami-i Şerifi), is a mosque and major cultural and historical site in Istanbul, Turkey. The cathedral was originally built as a Greek Ortho ...
in having a large central dome with semi-domes of the same span to the east and west. Hagia Sophia's central dome arrangement is faithfully reproduced in three Ottoman mosques in Istanbul: the Beyazidiye Mosque, the
Kılıç Ali Pasha Mosque, and the
Süleymaniye Mosque
The Süleymaniye Mosque ( tr, Süleymaniye Camii, ) is an Ottoman imperial mosque located on the Third Hill of Istanbul, Turkey. The mosque was commissioned by Suleiman the Magnificent and designed by the imperial architect Mimar Sinan. An insc ...
. Three other Imperial mosques in Istanbul also add semi-domes to the north and south, doing away with the basilica plan:
Şehzade Camii,
Sultan Ahmed I Camii, and
Yeni Cami. The peak of this classical period, which lasted into the 17th century, came with the architecture of
Mimar Sinan
Mimar Sinan ( ota, معمار سينان, translit=Mi'mâr Sinân, , ) ( 1488–1490 – 17 July 1588) also known as Koca Mi'mâr Sinân Âğâ, ("Sinan Agha (title), Agha the Grand Architect" or "Grand Sinan") was the chief Ottoman Empir ...
. In addition to large Imperial mosques, he produced hundreds of other monuments, including medium-sized mosques such as the
Mihrimah,
Sokollu, and
Rüstem Pasha Mosque
The Rüstem Pasha Mosque ( tr, Rüstem Paşa Camii) is an Ottoman mosque located in the Hasırcılar Çarşısı (Strawmat Weavers Market) in the Tahtakale neighborhood of the Fatih district of Istanbul, Turkey, near the Spice Bazaar. Named aft ...
and the
tomb
A tomb ( grc-gre, τύμβος ''tumbos'') is a :wikt:repository, repository for the remains of the dead. It is generally any structurally enclosed interment space or burial chamber, of varying sizes. Placing a corpse into a tomb can be ...
of
Suleiman the Magnificent
Suleiman I ( ota, سليمان اول, Süleyman-ı Evvel; tr, I. Süleyman; 6 November 14946 September 1566), commonly known as Suleiman the Magnificent in the West and Suleiman the Lawgiver ( ota, قانونى سلطان سليمان, Ḳ ...
. Süleymaniye Mosque, built in Constantinople (modern
Istanbul
Istanbul ( , ; tr, İstanbul ), formerly known as Constantinople ( grc-gre, Κωνσταντινούπολις; la, Constantinopolis), is the List of largest cities and towns in Turkey, largest city in Turkey, serving as the country's economic, ...
) from 1550 to 1557, has a main dome 53 meters high with a diameter of 26.5 meters. At the time it was built, the dome was the highest in the
Ottoman Empire
The Ottoman Empire, * ; is an archaic version. The definite article forms and were synonymous * and el, Оθωμανική Αυτοκρατορία, Othōmanikē Avtokratoria, label=none * info page on book at Martin Luther University) ...
when measured from sea level, but lower from the floor of the building and smaller in diameter than that of the nearby Hagia Sophia.
Another Classical domed mosque type is, like the
Byzantine church of Sergius and Bacchus, the domed polygon within a square. Octagons and hexagons were common, such as those of
Üç Şerefeli Mosque
The Üç Şerefeli Mosque ( tr, Üç Şerefeli Camii) is a 15th-century Ottoman mosque in Edirne, Turkey.
History
The Üç Şerefeli Mosque was commissioned by Ottoman sultan Murad II (1421–1444,1446– 1451), and built between 1438 and 1447. ...
(1437–1447) and
Selimiye Mosque in Edirne. The
Selimiye Mosque was the first structure built by the Ottomans that had a larger dome than that of the Hagia Sophia. The dome rises above a square bay. Corner semi-domes convert this into an octagon, which muqarnas transition to a circular base. The dome has an average internal diameter of about 31.5 meters, while that of Hagia Sophia averages 31.3 meters. Designed and built by architect Mimar Sinan between 1568 and 1574, when he finished it he was 86 years old, and he considered the mosque his masterpiece.
The first large Imperial Mosque of Istanbul in the imported Baroque style was the
Nuruosmaniye Mosque
The Nuruosmaniye Mosque ( tr, Nuruosmaniye Camii) is an 18th-century Ottoman mosque located in the Çemberlitaş neighbourhood of Fatih district in Istanbul, Turkey. In 2016 it was inscribed in the Tentative list of World Heritage Sites in Turke ...
(1748–1755). One of the finest was the
Laleli Mosque
The Laleli Mosque ( tr, Laleli Camii, or Tulip Mosque) is an 18th-century Ottoman imperial mosque located in Laleli, Fatih, Istanbul, Turkey.
History
The Laleli Mosque was built by Sultan Mustafa III from 1760–1763, designed in the Ottom ...
of 1759–1764.
Italian Renaissance domes
Filippo Brunelleschi
Filippo Brunelleschi ( , , also known as Pippo; 1377 – 15 April 1446), considered to be a founding father of Renaissance architecture, was an Italian architect, designer, and sculptor, and is now recognized to be the first modern engineer, p ...
's octagonal brick domical vault over
Florence Cathedral
Florence Cathedral, formally the (; in English Cathedral of Saint Mary of the Flower), is the cathedral of Florence, Italy ( it, Duomo di Firenze). It was begun in 1296 in the Gothic style to a design of Arnolfo di Cambio and was structurally c ...
was built between 1420 and 1436 and the lantern surmounting the dome was completed in 1467. The dome is 42 meters wide and made of two shells. The dome is not itself Renaissance in style, although the lantern is closer. A combination of dome, drum, pendentives, and barrel vaults developed as the characteristic structural forms of large Renaissance churches following a period of innovation in the later fifteenth century. Florence was the first Italian city to develop the new style, followed by Rome and then Venice. Brunelleschi's domes at
San Lorenzo
San Lorenzo is the Italian and Spanish name for Lawrence of Rome, Saint Lawrence, the 3rd-century Christian martyr, and may refer to:
Places Argentina
* San Lorenzo, Santa Fe
* San Lorenzo Department, Chaco
* Monte San Lorenzo, a mountain on t ...
and the
Pazzi Chapel
The Pazzi Chapel ( it, Cappella dei Pazzi) is a chapel located in the "first cloister" on the southern flank of the Basilica di Santa Croce in Florence, Italy. Commonly credited to Filippo Brunelleschi, it is considered to be one of the masterp ...
established them as a key element of Renaissance architecture. His plan for the dome of the Pazzi Chapel in Florence's
Basilica of Santa Croce
The (Italian for 'Basilica of the Holy Cross') is the principal Franciscan church in Florence, Italy, and a minor basilica of the Roman Catholic Church. It is situated on the Piazza di Santa Croce, about 800 meters south-east of the Duomo. The ...
(1430–52) illustrates the Renaissance enthusiasm for geometry and for the circle as geometry's supreme form. This emphasis on geometric essentials would be very influential.
''
De re aedificatoria'', written by
Leon Battista Alberti
Leon Battista Alberti (; 14 February 1404 – 25 April 1472) was an Italian Renaissance humanist author, artist, architect, poet, priest, linguist, philosopher, and cryptographer; he epitomised the nature of those identified now as polymaths. H ...
around 1452, recommends vaults with coffering for churches, as in the Pantheon, and the first design for a dome at St. Peter's Basilica in Rome is usually attributed to him, although the recorded architect is
Bernardo Rossellino
Bernardo di Matteo del Borra Gamberelli (1409 Settignano – 1464 Florence), better known as Bernardo Rossellino, was an Italian Renaissance sculptor and architect, the elder brother of the sculptor Antonio Rossellino. As a member of the secon ...
. This would culminate in
Bramante
Donato Bramante ( , , ; 1444 – 11 April 1514), born as Donato di Pascuccio d'Antonio and also known as Bramante Lazzari, was an Italian architect and painter. He introduced Renaissance architecture to Milan and the High Renaissance style ...
's 1505–06 projects for a wholly new
St. Peter's Basilica
The Papal Basilica of Saint Peter in the Vatican ( it, Basilica Papale di San Pietro in Vaticano), or simply Saint Peter's Basilica ( la, Basilica Sancti Petri), is a church built in the Renaissance style located in Vatican City, the papal e ...
, marking the beginning of the displacement of the Gothic ribbed vault with the combination of dome and barrel vault, which proceeded throughout the sixteenth century. Bramante's initial design was for a Greek cross plan with a large central hemispherical dome and four smaller domes around it in a
quincunx
A quincunx () is a geometric pattern consisting of five points arranged in a cross, with four of them forming a square or rectangle and a fifth at its center. The same pattern has other names, including "in saltire" or "in cross" in heraldry (d ...
pattern. Work began in 1506 and continued under a succession of builders over the next 120 years. The dome was completed by
Giacomo della Porta
Giacomo della Porta (1532–1602) was an Italian architect and sculptor, who worked on many important buildings in Rome, including St. Peter's Basilica. He was born at Porlezza, Lombardy and died in Rome.
Biography
Giacomo Della Porta was b ...
and
Domenico Fontana
Domenico Fontana (154328 June 1607) was an Italian architect of the late Renaissance, born in today's Ticino. He worked primarily in Italy, at Rome and Naples.
Biography
He was born at Melide, a village on the Lake Lugano, at that time joint p ...
. The publication of
Sebastiano Serlio
Sebastiano Serlio (6 September 1475 – c. 1554) was an Italian Mannerist architect, who was part of the Italian team building the Palace of Fontainebleau. Serlio helped canonize the classical orders of architecture in his influential treat ...
's treatise, one of the most popular architectural treatises ever published, was responsible for the spread of the oval in late Renaissance and Baroque architecture throughout Italy, Spain, France, and central Europe.
The
Villa Capra
Villa La Rotonda is a Renaissance villa just outside Vicenza in northern Italy designed by Italian Renaissance architect Andrea Palladio. The villa's correct name is Villa Almerico Capra Valmarana, but it is also known as "La Rotonda", "Villa Rot ...
, also known as "La Rotunda", was built by
Andrea Palladio
Andrea Palladio ( ; ; 30 November 1508 – 19 August 1580) was an Italian Renaissance architect active in the Venetian Republic. Palladio, influenced by Roman and Greek architecture, primarily Vitruvius, is widely considered to be one of th ...
from 1565 to 1569 near
Vicenza
Vicenza ( , ; ) is a city in northeastern Italy. It is in the Veneto region at the northern base of the ''Monte Berico'', where it straddles the Bacchiglione River. Vicenza is approximately west of Venice and east of Milan.
Vicenza is a th ...
. Its highly symmetrical square plan centers on a circular room covered by a dome, and it proved highly influential on the
Georgian architects of 18th century England, architects in Russia, and architects in America,
Thomas Jefferson
Thomas Jefferson (April 13, 1743 – July 4, 1826) was an American statesman, diplomat, lawyer, architect, philosopher, and Founding Fathers of the United States, Founding Father who served as the third president of the United States from 18 ...
among them. Palladio's two domed churches in Venice are
San Giorgio Maggiore
San Giorgio Maggiore ( vec, San Zorzi Mazor) is one of the islands of Venice, northern Italy, lying east of the Giudecca and south of the main island group. The island, or more specifically its Palladian church, is an important landmark. It ha ...
(1565–1610) and
Il Redentore
The Chiesa del Santissimo Redentore ( en, Church of the Most Holy Redeemer), commonly known as Il Redentore, is a 16th-century Roman Catholic church located on Giudecca (island) in the ''sestiere'' of Dorsoduro, in the city of Venice, Italy.
It ...
(1577–92), the latter built in thanksgiving for the end of a bad outbreak of
plague
Plague or The Plague may refer to:
Agriculture, fauna, and medicine
*Plague (disease), a disease caused by ''Yersinia pestis''
* An epidemic of infectious disease (medical or agricultural)
* A pandemic caused by such a disease
* A swarm of pes ...
in the city. The spread of the Renaissance-style dome outside of Italy began with central Europe, although there was often a stylistic delay of a century or two.
South Asian domes
Islamic rule over northern and central India brought with it the use of domes constructed with stone, brick and mortar, and iron dowels and cramps. Centering was made from timber and bamboo. The use of iron cramps to join together adjacent stones was known in pre-Islamic India, and was used at the base of domes for hoop reinforcement. The synthesis of styles created by this introduction of new forms to the
Hindu tradition of
trabeate
In architecture, post and lintel (also called prop and lintel or a trabeated system) is a building system where strong horizontal elements are held up by strong vertical elements with large spaces between them. This is usually used to hold up ...
construction created a distinctive architecture. Domes in pre-Mughal India have a standard squat circular shape with a lotus design and bulbous finial at the top, derived from Hindu architecture. Because the Hindu architectural tradition did not include arches, flat corbels were used to transition from the corners of the room to the dome, rather than squinches. In contrast to Persian and Ottoman domes, the domes of Indian tombs tend to be more bulbous.
![Top of Tajhat Palace, Rangpur, 03-09-2016](https://upload.wikimedia.org/wikipedia/commons/e/ed/Top_of_Tajhat_Palace%2C_Rangpur%2C_03-09-2016.jpg)
The earliest examples include the half-domes of the late 13th century
tomb of Balban
The Tomb of Ghiyas ud din Balban is located in Mehrauli, New Delhi, India. Built in circa 1287 CE in rubble masonry, the tomb is a building of historical importance in the development of Indo-Islamic architecture, as it was here that first Isla ...
and the small dome of the tomb of Khan Shahid, which were made of roughly cut material and would have needed covering surface finishes. Under the
Lodi dynasty
The Lodi dynasty ( ps, لودي سلسله; fa, سلسله لودی) was an Afghan dynasty that ruled the Delhi Sultanate from 1451 to 1526. It was the fifth and final dynasty of the Delhi Sultanate, and was founded by Bahlul Khan Lodi when he ...
there was a large proliferation of tomb building, with octagonal plans reserved for royalty and square plans used for others of high rank, and the first double dome was introduced to India in this period. The first major
Mughal building is the domed
tomb of Humayun
Humayun's tomb ( Persian: ''Maqbara-i Humayun'') is the tomb of the Mughal Emperor Humayun in Delhi, India. The tomb was commissioned by Humayun's first wife and chief consort, Empress Bega Begum under her patronage in 1558, and designed by Mir ...
, built between 1562 and 1571 by a Persian architect. The central double dome covers an octagonal central chamber about 15 meters wide and is accompanied by small domed
chattri
''Chhatri'' are elevated, dome-shaped pavilions used as an element in Indo-Islamic architecture and Indian architecture. Originating as a canopy above tombs, they serve as decorative elements. The earliest example of chhatri being used in the ...
made of brick and faced with stone.
Chatri
''Chhatri'' are elevated, dome-shaped pavilions used as an element in Indo-Islamic architecture and Indian architecture. Originating as a canopy above tombs, they serve as decorative elements. The earliest example of chhatri being used in the ...
s, the domed kiosks on pillars characteristic of Mughal roofs, were adopted from their Hindu use as
cenotaph
A cenotaph is an empty tomb or a monument erected in honour of a person or group of people whose remains are elsewhere. It can also be the initial tomb for a person who has since been reinterred elsewhere. Although the vast majority of cenot ...
s. The fusion of Persian and Indian architecture can be seen in the dome shape of the
Taj Mahal
The Taj Mahal (; ) is an Islamic ivory-white marble mausoleum on the right bank of the river Yamuna in the Indian city of Agra. It was commissioned in 1631 by the Mughal emperor Shah Jahan () to house the tomb of his favourite wife, Mu ...
: the bulbous shape derives from Persian Timurid domes, and the
finial
A finial (from '' la, finis'', end) or hip-knob is an element marking the top or end of some object, often formed to be a decorative feature.
In architecture, it is a small decorative device, employed to emphasize the Apex (geometry), apex of a d ...
with lotus leaf base is derived from Hindu temples. The
Gol Gumbaz
Gol Gumbaz (), also written Gol Gumbad, is a 17th-century mausoleum located in Bijapur, a city in Karnataka, India. It houses the remains of Mohammad Adil Shah, seventh sultan of the Adil Shahi dynasty, and some of his relatives. Begun in th ...
, or ''Round Dome'', is one of the largest masonry domes in the world. It has an internal diameter of 41.15 meters and a height of 54.25 meters. The dome was the most technically advanced built in the
Deccan
The large Deccan Plateau in South India, southern India is located between the Western Ghats and the Eastern Ghats, and is loosely defined as the peninsular region between these ranges that is south of the Narmada river. To the north, it is bou ...
. The last major Islamic tomb built in India was the
tomb of Safdar Jang
Safdarjung's tomb is a sandstone and marble mausoleum in Delhi, India. It was built in 1754 in the late Mughal Empire style for Nawab Safdarjung. The monument has an ambience of spaciousness and an imposing presence with its domed and arched ...
(1753–54). The central dome is reportedly triple-shelled, with two relatively flat inner brick domes and an outer bulbous marble dome, although it may actually be that the marble and second brick domes are joined everywhere but under the lotus leaf finial at the top.
Early modern period domes
![St Paul's Cathedral Dome from One New Change - Square Crop](https://upload.wikimedia.org/wikipedia/commons/4/43/St_Paul%27s_Cathedral_Dome_from_One_New_Change_-_Square_Crop.jpg)
In the early sixteenth century, the lantern of the Italian dome spread to Germany, gradually adopting the bulbous cupola from the Netherlands. Russian architecture strongly influenced the many bulbous domes of the wooden churches of
Bohemia
Bohemia ( ; cs, Čechy ; ; hsb, Čěska; szl, Czechy) is the westernmost and largest historical region of the Czech Republic. Bohemia can also refer to a wider area consisting of the historical Lands of the Bohemian Crown ruled by the Bohem ...
and
Silesia
Silesia (, also , ) is a historical region of Central Europe that lies mostly within Poland, with small parts in the Czech Republic and Germany. Its area is approximately , and the population is estimated at around 8,000,000. Silesia is split ...
and, in
Bavaria
Bavaria ( ; ), officially the Free State of Bavaria (german: Freistaat Bayern, link=no ), is a state in the south-east of Germany. With an area of , Bavaria is the largest German state by land area, comprising roughly a fifth of the total lan ...
, bulbous domes less resemble Dutch models than Russian ones. Domes like these gained in popularity in central and southern Germany and in Austria in the seventeenth and eighteenth centuries, particularly in the
Baroque style
The Baroque (, ; ) is a style of architecture, music, dance, painting, sculpture, poetry, and other arts that flourished in Europe from the early 17th century until the 1750s. In the territories of the Spanish and Portuguese empires including t ...
, and influenced many bulbous cupolas in Poland and Eastern Europe in the Baroque period. However, many bulbous domes in eastern Europe were replaced over time in the larger cities during the second half of the eighteenth century in favor of hemispherical or stilted cupolas in the French or Italian styles.
The construction of domes in the sixteenth and seventeenth centuries relied primarily on empirical techniques and oral traditions rather than the architectural treatises of the times, which avoided practical details. This was adequate for domes up to medium size, with diameters in the range of 12 to 20 meters. Materials were considered homogeneous and rigid, with compression taken into account and elasticity ignored. The weight of materials and the size of the dome were the key references. Lateral tensions in a dome were counteracted with horizontal rings of iron, stone, or wood incorporated into the structure.
Over the course of the seventeenth and eighteenth centuries, developments in mathematics and the study of
statics
Statics is the branch of classical mechanics that is concerned with the analysis of force and torque (also called moment) acting on physical systems that do not experience an acceleration (''a''=0), but rather, are in static equilibrium with ...
led to a more precise formalization of the ideas of the traditional constructive practices of arches and vaults, and there was a diffusion of studies on the most stable form for these structures: the
catenary
In physics and geometry, a catenary (, ) is the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends in a uniform gravitational field.
The catenary curve has a U-like shape, superficia ...
curve.
Robert Hooke
Robert Hooke FRS (; 18 July 16353 March 1703) was an English polymath active as a scientist, natural philosopher and architect, who is credited to be one of two scientists to discover microorganisms in 1665 using a compound microscope that ...
, who first articulated that a
catenary arch
A catenary arch is a type of architectural arch that follows an inverted catenary curve. The catenary curve has been employed in buildings since ancient times. It forms an underlying principle to the overall system of vaults and buttresses in ...
was comparable to an inverted hanging chain, may have advised Wren on how to achieve the crossing dome of
St. Paul's Cathedral. Wren's structural system became the standard for large domes well into the 19th century. The ribs in
Guarino Guarini's San Lorenzo and Il Sidone were shaped as
catenary arch
A catenary arch is a type of architectural arch that follows an inverted catenary curve. The catenary curve has been employed in buildings since ancient times. It forms an underlying principle to the overall system of vaults and buttresses in ...
es. The idea of a large oculus in a solid dome revealing a second dome originated with him. He also established the oval dome as a reconciliation of the longitudinal plan church favored by the liturgy of the Counter-Reformation and the centralized plan favored by idealists. Because of the imprecision of oval domes in the
Rococo
Rococo (, also ), less commonly Roccoco or Late Baroque, is an exceptionally ornamental and theatrical style of architecture, art and decoration which combines asymmetry, scrolling curves, gilding, white and pastel colours, sculpted moulding, ...
period, drums were problematic and the domes instead often rested directly on arches or pendentives.
In the eighteenth century, the study of dome structures changed radically, with domes being considered as a composition of smaller elements, each subject to mathematical and mechanical laws and easier to analyse individually, rather than being considered as whole units unto themselves. Although never very popular in domestic settings, domes were used in a number of 18th century homes built in the
Neo-Classical style. In the United States, most public buildings in the late 18th century were only distinguishable from private residences because they featured cupolas.
Modern period domes
![Aufriss und Mosaikflächen Dom des Heiligen Sava](https://upload.wikimedia.org/wikipedia/commons/7/73/Aufriss_und_Mosaikfl%C3%A4chen_Dom_des_Heiligen_Sava.jpg)
The
historicism
Historicism is an approach to explaining the existence of phenomena, especially social and cultural practices (including ideas and beliefs), by studying their history, that is, by studying the process by which they came about. The term is widely u ...
of the 19th century led to many domes being re-translations of the great domes of the past, rather than further stylistic developments, especially in sacred architecture. New production techniques allowed for
cast iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impuriti ...
and
wrought iron
Wrought iron is an iron alloy with a very low carbon content (less than 0.08%) in contrast to that of cast iron (2.1% to 4%). It is a semi-fused mass of iron with fibrous slag Inclusion (mineral), inclusions (up to 2% by weight), which give it a ...
to be produced both in larger quantities and at relatively low prices during the
Industrial Revolution
The Industrial Revolution was the transition to new manufacturing processes in Great Britain, continental Europe, and the United States, that occurred during the period from around 1760 to about 1820–1840. This transition included going f ...
. Russia, which had large supplies of iron, has some of the earliest examples of iron's architectural use. Excluding those that simply imitated multi-shell masonry, metal framed domes such as the elliptical dome of
Royal Albert Hall
The Royal Albert Hall is a concert hall on the northern edge of South Kensington, London. One of the UK's most treasured and distinctive buildings, it is held in trust for the nation and managed by a registered charity which receives no govern ...
in London (57 to 67 meters in diameter) and the circular dome of the
Halle au Blé in Paris may represent the century's chief development of the simple domed form. Cast-iron domes were particularly popular in France.
The practice of building rotating domes for
housing large telescopes was begun in the 19th century, with early examples using papier-mâché to minimize weight. Unique glass domes springing straight from ground level were used for
hothouses
''Hothouses'' (or ''Hot House Blooms'', french: Serres chaudes) (1889) is a book of symbolist poetry by the Belgian Nobel laureate Maurice Maeterlinck. Most of the poems in this collection are written in octosyllabic verse, but some are in fre ...
and
winter garden
A winter garden is a kind of garden maintained in wintertime.
History
The origin of the winter garden dates back to the 17th to 19th centuries where European nobility would construct large conservatories that would house tropical and subtro ...
s. Elaborate covered
shopping arcades included large
glazed domes at their cross intersections. The large domes of the 19th century included
exhibition buildings and functional structures such as
gasometers
A gas holder or gasholder, also known as a gasometer, is a large container in which natural gas or town gas is natural gas storage, stored near atmospheric pressure at room temperature, ambient temperatures. The volume of the container follows th ...
and
locomotive sheds. The "first fully triangulated framed dome" was built in Berlin in 1863 by
Johann Wilhelm Schwedler
Johann Wilhelm Schwedler (23 June 1823, Berlin – 9 June 1894, Berlin) was a German civil engineer and civil servant who designed many bridges and public buildings and invented the Schwedler truss and the Schwedler cupola. He is an author of ...
and, by the start of the 20th century, similarly triangulated frame domes had become fairly common.
Vladimir Shukhov
Vladimir Grigoryevich Shukhov (russian: link=no, Влади́мир Григо́рьевич Шу́хов; – 2 February 1939) was a Russian Empire and Soviet engineer-polymath, scientist and architect renowned for his pioneering works on new ...
was also an early pioneer of what would later be called
gridshell
A gridshell is a structure which derives its strength from its double curvature (in a similar way that a fabric structure derives strength from double curvature), but is constructed of a grid or lattice.
The grid can be made of any material, ...
structures and in 1897 he employed them in domed exhibit pavilions at the All-Russia Industrial and Art Exhibition.
Domes built with steel and concrete were able to achieve very large spans. In the late 19th and early 20th centuries, the Guastavino family, a father and son team who worked on the eastern seaboard of the United States, further developed the masonry dome, using
tiles
Tiles are usually thin, square or rectangular coverings manufactured from hard-wearing material such as ceramic, stone, metal, baked clay, or even glass. They are generally fixed in place in an array to cover roofs, floors, walls, edges, or o ...
set flat against the surface of the curve and fast-setting
Portland cement
Portland cement is the most common type of cement in general use around the world as a basic ingredient of concrete, mortar, stucco, and non-specialty grout. It was developed from other types of hydraulic lime in England in the early 19th c ...
, which allowed mild steel bar to be used to counteract tension forces. The thin domical shell was further developed with the construction by
Walther Bauersfeld
Walther Bauersfeld (23 January 1879 – 28 October 1959) was a German engineer.
Life
He was employed by the Carl Zeiss Jena, who, on a suggestion by the German astronomer Max Wolf, started work on the first projection planetarium in 1912. Th ...
of two
planetarium
A planetarium ( planetariums or ''planetaria'') is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation.
A dominant feature of most planetarium ...
domes in
Jena
Jena () is a German city and the second largest city in Thuringia. Together with the nearby cities of Erfurt and Weimar, it forms the central metropolitan area of Thuringia with approximately 500,000 inhabitants, while the city itself has a popu ...
, Germany in the early 1920s. They consisting of a triangulated frame of light steel bars and mesh covered by a thin layer of concrete. These are generally taken to be the first modern architectural
thin shells. These are also considered the first
geodesic dome
A geodesic dome is a hemispherical thin-shell structure (lattice-shell) based on a geodesic polyhedron. The triangular elements of the dome are structurally rigid and distribute the structural stress throughout the structure, making geodesic dom ...
s. Geodesic domes have been used for radar enclosures, greenhouses, housing, and weather stations. Architectural shells had their heyday in the 1950s and 1960s, peaking in popularity shortly before the widespread adoption of computers and the
finite element method
The finite element method (FEM) is a popular method for numerically solving differential equations arising in engineering and mathematical modeling. Typical problem areas of interest include the traditional fields of structural analysis, heat ...
of
structural analysis
Structural analysis is a branch of Solid Mechanics which uses simplified models for solids like bars, beams and shells for engineering decision making. Its main objective is to determine the effect of loads on the physical structures and thei ...
.
The first permanent
air supported membrane domes were the
radar domes designed and built by Walter Bird after World War II. Their low cost eventually led to the development of permanent versions using teflon-coated fiberglass and by 1985 the majority of the domed stadiums around the world used this system.
Tensegrity
Tensegrity, tensional integrity or floating compression is a structural principle based on a system of isolated components under compression inside a network of continuous tension, and arranged in such a way that the compressed members (usually ...
domes, patented by Buckminster Fuller in 1962, are
membrane structure
Membrane structures are spatial structures made out of tensioned membranes. The structural use of membranes can be divided into pneumatic structures, tensile membrane structures, and cable domes. In these three kinds of structure, membranes work ...
s consisting of radial trusses made from steel cables under tension with vertical steel pipes spreading the cables into the truss form. They have been made circular, elliptical, and other shapes to cover stadiums from Korea to Florida. Tension membrane design has depended upon computers, and the increasing availability of powerful computers resulted in many developments being made in the last three decades of the 20th century. The higher expense of rigid large span domes made them relatively rare, although rigidly moving panels is the most popular system for sports stadiums with
retractable roof
A retractable roof is a roof system designed to roll back the roof of a structure so that the interior of the facility is open to the outdoors. Retractable roofs are sometimes referred to as operable roofs or retractable skylights. The term op ...
ing.
See also
*
Lists of domes
*
Cupola
In architecture, a cupola () is a relatively small, most often dome-like, tall structure on top of a building. Often used to provide a lookout or to admit light and air, it usually crowns a larger roof or dome.
The word derives, via Italian, from ...
*
Vault (architecture)
In architecture, a vault (French ''voûte'', from Italian ''volta'') is a self-supporting arched form, usually of stone or brick, serving to cover a space with a ceiling or roof. As in building an arch, a temporary support is needed while rin ...
*
Rotunda (architecture)
A rotunda () is any building with a circular ground plan, and sometimes covered by a dome. It may also refer to a round room within a building (a famous example being the one below the dome of the United States Capitol in Washington, D.C.). The ...
*
Monolithic dome
A monolithic dome (from Greek mono- and -lithic, meaning "one stone") is a thin-shell structure cast in a one-piece form. The form may be permanent or temporary and may or may not remain part of the finished structure. Monolithic domes are a f ...
*
Copper domes
*
Dome car
A dome car is a type of railway passenger car that has a glass dome on the top of the car where passengers can ride and see in all directions around the train. It also can include features of a coach, lounge car, dining car, sleeping car or obse ...
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{{Authority control
Dome
A dome () is an architectural element similar to the hollow upper half of a sphere. There is significant overlap with the term cupola, which may also refer to a dome or a structure on top of a dome. The precise definition of a dome has been a m ...
Arches and vaults
Architectural elements
Ancient Roman architectural elements
Byzantine architecture
Church architecture
Mosque architecture
Baroque architectural features
Ceilings
Roofs