Leaning Tower of Pisa (Italian: Torre pendente di Pisa or Torre di Pisa, in English: Leaning Tower of Pisa), the world-famous architectural wonders, one of Italy's flag. Leaning Tower of Pisa in the Italian city of Pisa, Tuscany province north of the Square of Miracles buildings, and it and the neighboring cathedral, baptistery, the cemetery was a huge influence on the 11th century to the 14th century Italian architecture, it is the United Nations Educational scientific and Cultural Organization named a World Heritage Site. Leaning Tower of Pisa, Pisa Cathedral City freestanding bell tower, located behind the Cathedral of Pisa is one of the architectural wonders of the three square, was built in 1173, designed for vertical construction, but shortly after the project began as a result of the foundation will not uniform and soil soft and tilt, completed in 1372, the tower tilted to the southeast.