Which of the following was NOT an architectural innovation of the Romans?

Question

Quizplus · Accepted Answer

Pillars were not an innovation of the Romans as they were used in architecture by many ancient civilizations before them, including the Greeks and Egyptians. The Romans did, however, use pillars in their architecture, but it was not an invention unique to their civilization. Concrete, aqueducts, and arches were all significant innovations that had a lasting impact on architecture and engineering.

Which of the Following Was NOT an Architectural Innovation of the Romans