Located on a ridge that rises above the Valdichiana, Sarteano's mediaeval origins are clearly indicated by the imposing, square donjon of its 10th century castle.
Le donjon carré et imposant du château (X° siècle), parle clairement des origines médiévales de Sarteano, village qui se développe le long d'une dorsale collinaire qui domine la Valdichiana.