The fountains in Florence are modest compared to other Italian cities, particularly Rome, where my favorite, The Trevi Fountain is located. I will be traveling to Rome in a couple of weeks to meet Amy, and will definitely visit the Trevi Fountain.
Here are some photos of the ones in Florence.
The brass wild boar in the photo is located in Mercato Nuovo, It is called Il Porcellino. It is a 17th century copy of a statute in the Uffizi. Notice that the nose is very shiny compared to the rest of the body. That is because of the superstition that any visitor who rubs it will return to Florence some day. Laugh if you want, but it worked for me!