This page is a glossary of architecture.
The Caryatid Porch of the Erechtheion, Athens, 421–407 BC
A corbie gable from Zaltbommel
A chigi and katsuogi at the end of the ridgeline of a Shinto roof
An arch is a curved vertical structure spanning an open space underneath it. Arch can either support the load above it or perform a purely decorative role. The arch dates back to fourth millennium BC, but became popular only after its adoption by the Romans in the 4th century BC.
Gateway Arch
A complex funicular model (Church of Colònia Güell by Gaudi, 19th century)
Arcades of Pont du Gard (Roman)
Separating arches in the St. Zeno church [de]