Le Due Torri
Two landmark medieval towers, mentioned by Dante in The Inferno, stand side by side in the compact Piazza di Porta Ravegnana. Once, every family of importance had a tower as a symbol of prestige and power (and as a potential fortress). Now only 24 remain out of nearly 100 that once presided over the city. Torre Garisenda (late 11th century), which tilts 4 degrees (Pisa's leans 3.9), was shortened to 157 feet in the 1300s. Torre degli Asinelli (1119) is 318 feet tall and leans 7½ feet; both towers and the piazza are currently closed to visitors while the tottering Torre Garisenda is being carefully monitored.