The term "architectural arch" refers to a curved structure that spans an open space. This element is commonly found in architecture, providing both structural support and aesthetic appeal. There are several synonyms for "architectural arch", including "arcade", " vault", "dome", "architrave", and "crown". These words all evoke the image of a curved and graceful structure, and can be used interchangeably to describe any type of arch. Architects and designers often use arches to create dramatic entrances, add vertical height to a building, or to provide a focal point to an interior space. No matter what term is used, an architectural arch is a timeless and stunning element of design.