The palace is one of the great Italian buildings of the 15th century – the central courtyard is particularly elegant, with fine Corinthian capitals around the arcades.
Admire the exterior of the Duomo (0039 577 286300; operaduomo.siena.it; £2.40 or included in the price of an Opa Si Pass, £9.60).
Piazza del Campo is Europe’s finest medieval square and is the scene of the Palio horse race, Italy’s most dramatic historical spectacle.
The Santa Maria Scala (0039 577 534571; santamariadellascala.com; £4.80) is a vast art-filled building which, until 1995, was Siena’s main hospital for 800 years.
