Rocca del Leone

In Castiglione del Lago, there is a medieval fort which is open to the public.
Walking on top of the walls of the fort is a very entertaining way to spend the afternoon. You’ll go through the walls of the town and walk all the way to the end, where you will see a small museum which costs a few Euro for admittance. After walking through a few rooms in the museum, you head down a staircase that leads to the walls of the fort. The main passage is very narrow and long. At the end, you come out to towers and walls which you can walk around and have a spectacular view of the lake. I highly recommend this one!