Castel and Ponte Sant' Angelo
The castle of S. Angelo, fortified in the time of the popes, was built by Hadrian as his mausoleum. The bridge is the ancient pons Aelius of which the parapet is modern, and the statues of SS. Peter and Paul and of angels bearing the instruments of the Passion were added by Clements VII. and IX. It was built by Hadrian to reach his mausoleum. In the middle ages it was lined by a double row of booths, and two hundred people were crushed to death here in the Jubilee of 1450.