What was the Roman series of arches carried on columns?

• A. Arcade
• B. Colonnade
• C. Portico
• D. Atrium

Answer: (A)

In Roman architecture, a series of arches carried on columns is called an arcade. This term describes a covered passage or gallery formed by multiple arches that sit atop evenly spaced columns or piers, giving a rhythmic row of arches along a passageway or facade. The arcade creates both a functional route and a decorative rhythm of light and shadow.

Think of it as arches linked together by their columns, unlike a colonnade, which is just a row of columns supporting a horizontal beam with no arches; a portico, which is a roofed entry porch supported by columns; or an atrium, which is an open central room in a house. So the best fit for a Roman sequence of arches on columns is the arcade.