Ponte Sant'Angelo
The city of Rome contains numerous famous bridges which cross the Tiber. The only bridge to remain unaltered until today from the classical age is Ponte dei Quattro Capi, which connects the Isola Tiberina with the left bank. The other surviving – albeit modified – ancient Roman bridges crossing the Tiber are Ponte Cestio, Ponte Sant'Angelo and Ponte Milvio. Considering Ponte Nomentano, also built during ancient Rome, which crosses the Aniene, currently there are five ancient Roman bridges still remaining in the city. Other noteworthy bridges are Ponte Sisto, the first bridge built in the Renaissance above Roman foundations; Ponte Rotto, actually the only remaining arch of the ancient "Pons Aemilius", collapsed during the flood of 1598 and demolished at the end of the 19th century; and Ponte Vittorio Emanuele II, a modern bridge connecting Corso Vittorio Emanuele and Borgo. Most of the city's public bridges were built in Classical or Renaissance style, but also in Baroque, Neoclassical and Modern styles. According to the Encyclopædia Britannica, the finest ancient bridge remaining in Rome is the Ponte Sant'Angelo, which was completed in 135 AD, and was decorated with ten statues of the angels, designed by Bernini in 1688.