Asciano - The village (200m, pop. 6340) is on high ground in the upper Ombrone valley, on the old Via Lauretana.

Having Etruscan and Roman origin, the village was purchased by the Sienese in 1285 and surrounded by walls in 1351.

It still preserves its medieval character despite the town-planning schemes of the fascist period and extensive building after the Second World War.

The Romanesque collegiate church od Sant' Agata (11th cent.)in travertine, is its most outstanding architectural feature. Adorned with decorative elements of the Lombard type and flanked by a 13th century crenellated campanile, it has an aisleless nave with a truss roof.

Adjoining it is the Museo d'Arte Sacra where works by painters of the Sienese school of the 14th and 15th centuries are exhibited. The Museo archeologico contains finds from the excavation of a group of chamber tombs in the nearby cemetery of Poggio Pinci. In 1991 a museum devoted to the artist Amos Cassioli was founded as the result of a gift from his family.