An apron is a raised section of

ornamental Ornamental may refer to: *Ornamental grass, a type of grass grown as a decoration *Ornamental iron, mild steel that has been formed into decorative shapes, similar to wrought iron work *Ornamental plant, a plant that is grown for its ornamental qua ...

stonework Stonemasonry or stonecraft is the creation of buildings, structures, and sculpture using rock (geology), stone as the primary material. Stonemasonry is the craft of shaping and arranging stones, often together with Mortar (masonry), mortar ...

below a window ledge,

stone tablet A stele ( ) or stela ( )The plural in English is sometimes stelai ( ) based on direct transliteration of the Greek, sometimes stelae or stelæ ( ) based on the inflection of Greek nouns in Latin, and sometimes anglicized to steles ( ) or stela ...

, or

monument A monument is a type of structure that was explicitly created to commemorate a person or event, or which has become relevant to a social group as a part of their remembrance of historic times or cultural heritage, due to its artistic, historical ...

. Aprons were used by Roman engineers to build

Roman bridges The ancient Romans were the first civilization to build large, permanent bridges. Early Roman bridges used techniques introduced by Etruscan immigrants, but the Romans improved those skills, developing and enhancing methods such as arches and k ...

. The main function of apron was to surround the feet of the

piers Piers may refer to: * Pier, a raised structure over a body of water * Pier (architecture), an architectural support * Piers (name), a given name and surname (including lists of people with the name) * Piers baronets, two titles, in the baronetages ...

Notes

References

* Masonry Architectural elements {{Architecturalelement-stub