Pisa is the name of a Town, who, quite accidentally had a Tower built that started to lean. So the Tower became known as the "leaning Tower of Pisa". It can't be the "leaning Tower of Pisa" if it isn't in Pisa.
The Leaning tower of Pisa, which is in Italy, is famous for its lean. Even if it didn't lean at all, it will still be famous because the tower of Pisa is a cathedral of Italy, or also known as the bellchamber/belltower of Italy.
it is called the leaning tower of Pisa the called it the toer of Pisa now the tower of Pisa would be great to live in if only it didn't lean. now if u excuse me... i have to do some more research so please, shut up.