Construction on La Torre di Pisa began in August 1173, and at first the tower did not have a tilt. It wasn’t until workers completed three floors of the tower that its now-famous lean was noticeable, leading to a halt in construction. In 1273, work on the tower began again. However, it wasn’t until 1360 that the tower was completed.
Leaning Tower of Pisa
The Leaning Tower of Pisa as seen on May 1, 2016. (Photo by Todd DeFeo)