We went on a paid tour of Duomo to get exclusive access to some of the areas of the famous landmark. Well worth the price and exercise (had to go up around steps to get to the top). By the way, this is not even close to the top.
Siena, Italy also located in the Chianti region houses a gothic cathedral and paintings by medieval masters, Duccio and Simone Martini. The Renaissance and Etruscan history are evident in each landmark of the region.