Step into the middle ages with a visit to Siena. The Tuscan hill town's magnificent cathedral, built in the 1200s, is a marvel of marble floors and astonishing artworks. Spend a day people-watching on the town's sloping red-brick Piazza del Campo, which is designated a UNESCO World Heritage Site and houses a dramatic Gothic city hall, the Gaia Fountain and the Chapel of the Virgin. Numerous daily trains connect the medieval city with Florence, located 43 miles to the north.