I navigated Pisa without maps, which was actually a good idea as the signs to go to the Leaning Tower of Pisa (or Torre pendente di Pisa) was clear and you also had an opportunity to wander around the piazzas of the older part of the city. There are some people that do a tour, but when you ask if they have ever wandered through the other parts of the city it turns out they haven’t.
You will also see a series of street art with a common theme by an artist called Blub. He has a lot of works also in Florence but can also be found in Pisa. See below!
Il Gelato Di Toto is a gelato shop that I recommend because of the flavors!