Siena is a classic medieval hill town in Tuscany famous for its large fan-shaped piazza. Piazza del Campo is the heart of the town and is the home to the famous summer horse-race, known as Il Palio. Siena is one of the prettiest medieval towns. Its peak was about 1260-1348 when it was one of Europe's wealthiest cities and many of its buildings and art works originate from that time. Milan .You can also visit cathedral of Santa Maria Assunta.