Skip the line to one of Italy's most important Roman-Gothic style buildings - the magical Cathedral of Siena. Marvel at the frescoes by Donatello, Michelangelo, and Pinturicchio. See the Crypt and the Piccolomini Library, and don't forget to check out the floor. It's made of 56 panels of inlaid marble mosaics and is one sight you won't forget.Housing some of the most important European artistic monuments, the Roman-Gothic style Cathedral of Siena makes for a meaningful morning. Over a million visitors every year step through these stunning doors - it's just as spectacular as Florence's Duomo.Skip the line and get up close to amazing frescoes by the likes of Donatello, Michelangelo, and Pinturicchio. They're all here in what is one of the most important examples of this style of building in Italy, constructed between 1214 and 1263. See the Crypt, the Baptistery and the Museo dell'Opera, all of which form the (Old Cathedral), and the (New Cathedral) and check out the Piccolomini Library, dedicated to Pope Pius II.Oh, and don't forget to look down. The floor is an art piece in itself, with 56 scenes engraved in marble, which were carved between 1369 and 1547 by 40 different artists. You'll step lightly, but the complexity is staggering!