Italian Renaissance artists were looking to their Classical past and soaking up all of its artistic inspirational goodness. The Renaissance saw the discovery of many Greek and Roman sculptures and the rediscovery of Classical buildings.

Michelangelo was present when quite possibly the most influential sculpture, Laocoon, was being unearthed, and the twisting, highly muscular bodies influenced his work. In the background of the painting Delivery of the Keys by Renaissance master Pietro Perugino (in the Sistine Chapel), there are two Roman triumphal arches that are suspiciously similar to the Arch of Constantine, an Ancient Roman structure that's a 20-minute walk from the Sistine Chapel.