|Bagni di Nerone||0.4km|
|Rocca di Carmignano||50km|
|Ponte di Pietrabianca||40km|
|Romano di Luni amphitheater||48km|
The construction work began 1173, and almost immediately the building began to skew. The main reason was that the foundations had been installed in too soft ground. It is interesting that at that time the construction was leaning to the opposite side... Thus, the builders decided to balance the tower by adding stones and branches into the ground around the foundations. The intention was good, however, when the third floor was completed in 1185, the tower leaned again., so the building work was suspended. About 90 years later, the tower new floors was added. The new architect was trying to reverse the tilt by constructing the new floors leaned to the opposite side - in order to change the gravitational centre of the tower. This attempt was successful, the tower was leaning slowlier then. However, the plan to erect the highest bell tower in the world failed. The 6th floor was completed in 1350 by installing the bell bench. In the course of the 20th century, Leaning Tower of Pisa leaned from its axis by more than 5 meters. In 1990 it was closed to the public for safety reasons. Rescue work was commenced immediately. The foundations were reinforced with iron ropes and a part of the soft clay around the foundations was taken away, and the result was positive - the leaning was considerably reduced . Now the Leaning Tower of Pisa is skewed by less than 3 meters and it is open to the public.