Which Italian city is famous for its two leaning towers?

Pisa is not the only city that is famous in Italy for having a leaning tower. "Le due torri" ("The Two Towers") are the symbol of Bologna, the most prominent of the Towers of Bologna, and both of them are leaning.

The leaning towers are located at the intersection of the roads that lead to the five gates of the old ring wall. The taller one is called the "Asinelli" while the smaller but more sharply leaning tower is called the "Garisenda." Their names derive from the families which are traditionally credited with having constructed the towers between 1109 and 1119. Charles Dickens wrote about the towers in his "Pictures from Italy."

The "Asinelli" Tower initially had a height of about 70 metres (230 feet) and was raised only later to the current 97.2 metres (319 feet). In the 14th century the city became the owner of the "Asinelli" Tower and used it as a prison and small stronghold. During this period a wooden construction was added around the tower, connected with an aerial footbridge to the "Garisenda" Tower.

The "Garisenda" Tower is 48 metres (157 feet) high, with an overhang of 3.2 metres (10 ft). Initially, it was 60 metres (about 200 feet) high, but had to be lowered in the 14th century due to a yielding of the ground which left it slanting and dangerous. In the early 15th century, the tower was bought by the nearby "Palazzo dell'Arte dei Drappieri," which remained the sole owner until the "Garisenda Tower" became municipal property in the 19th century.