Facade of the Palazzo Senatorioa, Piazza del Campidoglio, Capitoline Hill and cordonata, Rome

NOTES: The design of the Piazza del Campidoglio which encompasses the Palazzo dei Conservatori and the Capitoline Museum was laid out by Michelangelo from 1536-1546, but not fully executed until the 17th century. He also designed the stepped ramp known as the cordonata (later modified by Giacomo della Porta in 1578) which leads up to the piazza from the via del Teatro di Marcello. The two giant statues of Castor and Pollux are also thought to be based on his designs. The Palazzo Senatorio was built during the 13th and 14th centuries.