There are many leaning towers in Italy. The Leaning Tower of Pisa is famous for its architecture and the rate at which it leans. The first architect built the first four levels of the tower. Then, construction just stopped, the reasons are unknown. A century later, construction began again. By then, it was already leaning. The architect at that time tried to compensate for its lean by making the columns on the right longer and the columns on the left shorter. He did this to the next three layers. Again, construction stopped. Another century later, the last architect, following the same pattern, put the bell tower on top. Because of all this, the Tower is shaped like a banana.