Ambulacrum is an architectural word that denotes an

atrium Atrium may refer to: Anatomy * Atrium (heart), an anatomical structure of the heart * Atrium, the genital structure next to the genital aperture in the reproductive system of gastropods * Atrium of the ventricular system of the brain * Pulmona ...

courtyard A courtyard or court is a circumscribed area, often surrounded by a building or complex, that is open to the sky. Courtyards are common elements in both Western and Eastern building patterns and have been used by both ancient and contemporary ...

, or

parvise A parvis or parvise is the open space in front of and around a cathedral or church, especially when surrounded by either colonnades or porticoes, as at St. Peter's Basilica in Rome. It is thus a church-specific type of forecourt, front yard or a ...

in front of a

basilica In Ancient Roman architecture, a basilica is a large public building with multiple functions, typically built alongside the town's forum. The basilica was in the Latin West equivalent to a stoa in the Greek East. The building gave its name ...

church Church may refer to: Religion * Church (building), a building for Christian religious activities * Church (congregation), a local congregation of a Christian denomination * Church service, a formalized period of Christian communal worship * Chris ...

that is surrounded by arcades or

colonnade In classical architecture, a colonnade is a long sequence of columns joined by their entablature, often free-standing, or part of a building. Paired or multiple pairs of columns are normally employed in a colonnade which can be straight or curv ...

s, or

tree In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...

s, and which often contains a

fountain A fountain, from the Latin "fons" (genitive "fontis"), meaning source or Spring (hydrology), spring, is a decorative reservoir used for discharging water. It is also a structure that jets water into the air for a decorative or dramatic effect. ...

. It also can denote a walking path that trees delineate.

References

*James Stevens Curl, ''A Dictionary of Architecture and Landscape Architecture'' (Oxford University Press, 2006). Architectural elements {{architecturalelement-stub