A colonnade or covered ambulatory, especially in classical styles of architecture; usually, a colonnade at the entrance of a building.

An elaborate or at least covered porch area adjacent to a main entrance, generally in a classical building. This functions as a means to protect visitors from the elements as well as emphasizing the taste and wealth of the owner.

colonnade or covered porch, esp. at the entrance of a building

a roofed space, open or partly enclosed, forming the entrance of the facade of a temple, house, or church, often with detached or attached columns and a pediment