FROM MEDIEVAL CORNERS TO THE GALLERY OF WONDERS (2-hour tour)

The city walls
The perimeter of the old city walls is 1.5-km long. Built between the 13th and 14th centuries and restructured in the 15th century by Baccio Pontelli, the walls follow the layout of the ancient Roman defensive enclosure and still have all the characteristics of a medieval defensive system: towers, ‘chemin de ronde’ battlements, murder holes and embrasures.