The good news is that Siena has surprisingly ample parking for an Italian city; the bad news it that it’s fairly expensive and most of it is located far away from everything worth seeing (often beyond city walls). To rent a car (which is a good idea if you plan to tour the Tuscan countryside after visiting Siena), a driver must be at least 23 years old and carry either an EU license or an International Driving Permit. Companies with locations in Siena include Avis, Hertz, and Maggiore.

Siena has taxis as well, which can be booked in advanced through Radio Taxi or Taxi Merci, and there are taxi stands on Piazza Matteotti and outside the train station. Chauffeured limousine services are also available from Intercar, which is located on Viale Europa.

However, the historical center of town, with its numerous plazas and palaces, strictly prohibits automobiles and even bicycles. There is a small bus, the Pollicino, which is operated by TRA.IN, runs from outside the city to a few central streets in the town center, but its limited stops and 30-minute interval between buses make it impractical for sightseeing. Therefore, getting around will definitely require lots of hard walking, and as the city is built on a hill, be prepared for some steep inclines as you make your way around Siena.