I lived here summer of 06 and had a ood time. I didnt find much to do for some reason, besides spend money on the little trinkets they sell you around the corner before the leaning tower. Of course, there is the leaning tower to see! The domo was really cool, and everything is so beautiful. You could definitely just spend a day in the arena admiring what it took to make what you are seeing. Since the 1300 Nicholas Pisano I think is his name, started working on the tower. I dont think it was finished intil late in the 1400. Divinci got his idea for the pendelum when looking up at one of the chandeliers in the huge church there. Just a lot of history, and a LOT of people if you go in the summer time.