Castel Sant'Angelo, Rome, during firework display

SOURCE: Giacomo Lauro. Antiquae urbis splendor (Rome, 1637), pl. 130 NOTES: Castel Sant'Angelo was originally constructed as a mausoleum for the Emperor Hadrian in 135-139 AD. The bridge, built at the same time to connect the mausoleum to the Campus Martius, was named Ponte Elio. When the mausoleum became a castle in 401 AD it was renamed Castel Sant'Angelo and the bridge took the same name.