The Pisa Cathedral is the residence in Pisa's Miracle Square. The largest of the church buildings, can be said to be the main building of these buildings, but because the tower of Pisa as the church bell tower is so famous, so before coming to Pisa, I really only heard of the tower of Pisa and not heard of the Cathedral of Pisa. Built in the 11th century, Pisa Cathedral is a historic building that has been more than a thousand years old. But it is not dilapidated at all, very well preserved, gorgeous and atmospheric.