24 Famous places to visit before they disappear

Leaning Tower of Pisa, Italy

In the case of the Leaning Tower of Pisa, a bell tower famous for its striking tilt, the reason of why it might disappear soon is obvious. With the top of the tower displaced horizontally 3.9 meters (12 ft 10 in) from the center, the tower may follow the destiny of the bell tower in Pavia, northern Italy, which was also tilted and collapsed in 1989.