why does the leaning tower ofpisa lean
The leaning tower of Pisa is part of the Cathedral Square in Pisa, Tuscany, Italy, which is a UNESCO world heritage site.Originally it was built as a bell tower (campanile) for the cathedral. The tower has leaned almost since construction started, due to faulty foundation and weak subsoil.istory of the Tower. Construction of the tower (in Italian: Torre pendente di Pisa) started in 1173, when the city of Pisa was prosperous. This makes it the third oldest structure of the Cathedral Square (Piazza del Duomo) in Pisa.