River Arno
This magnificent river flows from Mount Falterona (in the Apennines mountains), down through Florence, Empoli, and finally Pisa, where it deposits into the sea. Several bridges span the Arno in Florence, all of which can be crossed a piedi (on foot) and all but the Ponte Vecchio permit cars to cross. From east to west, the bridges in order ARE: Ponte alle Grazie, Ponte Vecchio, Ponte a Santa Trinita', Ponte Carraia, and Ponte Amerigo Vespucci.The Arno, itself, is a beautiful thing, yet it can also be quite temperamental. There have been many floods over the centuries - the most recent being in 1966, which killed around 100 people and destroyed many priceless works of art after the river rose to above 6.7 meters (more than 22 feet) in less than 24 hours.