Castel Sant’Angelo

The Castel Sant’Angelo, otherwise known as the Mausoleum of Hadrian, was originally constructed as a tomb for the Roman emperor and his family. After years of looting and pillaging by the Goths, the structure was rebuilt in the 14th century to serve as a Papal fortress and residence—Pope Clement VII sought refuge here during the Sack of Rome (1527)—as well as a prison. The Passetto di Borgo, or fortified corridor connecting the castle to St. Peter’s Basilica, was most recently made famous for its appearance in Dan Brown’s 2000 novel (and the 2009 movie) Angels and Demons. Don’t miss the castle’s underground prison, which displays ancient torture devices that are sure to amuse the kids.