The Tower of Pisa is the bell tower of the Cathedral
Its construction began in the august of 1173 and continued (with two long interruptions) for about two hundred years, in full fidelity to the original project, whose architect is still uncertain
In the past it was widely believed that the inclination of the Tower was part of the project ever since its beginning, but now we know that it is not so
The Tower was designed to be vertical (and even if it did not lean it would still be one of the most remarkable bell towers in Europe), and started to incline during its construction
Both because of its inclination, and its beauty, from 1173 up to the present the Tower has been the object of very special attention
During its construction efforts were made to halt the incipient inclination th