Though it is not a big city, Siena really deserves at least a day or two: admire its unique main square Piazza del Campo, one of the landmarks of the city. Among the buildings overlooking the square, I recommend you the Palazzo Comunale, the Civic Museum and the Torre del Mangia, with its views of the city.
The stunning dark green and white Cathedral in Siena is one of the most outstanding examples of Romanesque-Gothic church in Italy.
Save some time to just stroll through the streets of the city.
Spend then one day or two for an unforgettable wine tour in the area of Montalcino visiting the most famous wineries and historical cellars guided by experts who will help you to understand and compare the subtle variations in the variety of Sangiovese and its world famous red Brunello. The tour includes not only wine, but also a tour in the world of food and art of one of the most fascinating region of Italy.