texts: topic: Tourism in Italy  <s> what is Pisa and where exactly is it located? </s> <s> Pisa is located in Tuscany, most famous for the leaning tower of Pisa.  </s> <s> oh, i think i've heard about it. do you know why the tower of Pisa is leaning? 
labels: Yep. It's actually caused by inadequate foundation on the ground. It's too soft on one side, so the tower began to tilt in the 12th century. Someone really messed up!