The historic centre of Siena in Italy has been declared by UNESCO a World Heritage Site in 2008. This marvel in Tuscany founded by Etruscans (c. 900–400 BC) is famous for its cuisine, art, museums, medieval cityscape and the Palio, a horse race held twice a year at the Piazza del Campo, the shell-shaped town square, before the Palazzo Pubblico with its tall Torre del Mangia. Another must see marvel is the The Siena Cathedral (Duomo) a masterpiece of Italian Romanesque-Gothic architecture. There are some fantastic day trips you can start from here like visiting: the Abbey of Monte Oliveto Maggiore in Chiusure, and the towns of San Gimignano, Pienza, Arezzo, Montepulciano, Montalcino, Lucignano, Monteriggioni, and Pisa. Siena is located in the central part of Tuscany, in the middle of a vast hilly landscape between the Arbia river valley (south), the Merse valley (south-west), the Elsa valley (north), the Chianti hills (north-east), the Montagnola Senese (west) and the Crete Senesi (south-east). The city lies at 322 m above sea level.