A walk along the old city walls, over 4 kilometers of panoramic walkway overlooking the city Learn More Piazza dell'Anfiteatro is a public square in the northeast quadrant of walled center Guinigi Tower is a typical example of local Romanesque-Gothic architecture. See More Piazza Napoleone is also called Piazza Grande. It was dedicated to Napoleon by his sister Elisa Giglio Theatre, the historic city theater and opera house inaugurated in 1675 San Michele in Foro a Roman Catholic basilica built over the ancient Roman forum See Less