This is a footbridge connecting Castel Sant'Angelo with the other side of the Tiber. It is a Roman bridge completed in 134 AD by Hadrian, to give access to his newly constructed mausoleum. Pilgrims used this bridge to reach St Peter's Basilica, hence it was earlier known as the "bridge of Saint Peter". In the seventh century, the castle and the bridge took on the name Sant'Angelo, when it is said that an angel appeared on the roof of the castle to announce the end of a plague. The statues of ten angels on the bridge reflect its name.