Leaning Tower of Pisa

The Leaning Tower of Pisa is one of the most famous attractions in Italy, known for its iconic diagonal tilt. Constructed over the course of 199 years, the tower originally dates back to 1173 when it was built during an especially prosperous period in Pisa's history.
Drawing over one million visitors per year, the tower was off-limits to guests between 1990 and 2001 for safety reasons. Following a decade of corrective reconstruction, it is now once again able to hold visitors for centuries to come.