This part of the Tuscan territory is particularly rich in works of art, especially from the late medieval and Renaissance periods. There is no shortage of more recent artistic testimonies such as those found in Asciano at the Museo di pittura dell'Ottocento Senese "Amos Cassioli". As soon as you begin an exploration of the works present in the territory and in the museums, the strong cultural link between the city of Siena and this part of its territory becomes clear. In fact, the most important museum of sacred art of the Sienese school after the Pinacoteca Nazionale of Siena is "Palazzo Corboli in Asciano, because it contains numerous and important works by the masters of the Sienese school. However, the collection of similar works kept in the Museum of Sacred Art of Val d'Arbia in Buonconvento should not be underestimated. Absolutely not to be forgotten is the Abbey of Monte Oliveto Maggiore which, in addition to an interesting museum and a precious historical library, contains within it the main cloister, entirely frescoed by Sodoma and Signorelli.