The keep square and its imposing castle (X century), speaks clearly of the medieval origins of Sarteano, a town that grew up along a ridge rising above the Valdichiana. Sarteano also boasts civil and religious buildings of great interest; in particular, we recommend a visit to the church of San Martino in Foro The Collegiate Church, dedicated to Saints Lorenzo and Apollinare, also works fine. Among the civil buildings the Town Hall, Palazzo Piccolomini, Palazzo Goti–Fanelli and Palazzo Cennini a small jewel is the Theatre of Arrischianti. Certainly worth a visit the Archaeological Museum, which houses important Etruscan and Roman. Every year in August hosts the “Giostra del Saracino“, a challenge on horseback of medieval origin. A few kilometers from the center, through forests and unspoiled foltissimi, they reach the fortified Abbey of Spineto and the mediaeval village of Castiglioncello Trinoro.