The ancient village of Chiusdino is situated in a magnificent position, on the top of a hill, between forests and pastures. The origins of the town are longobard, as its name says. The original nucleus, built around the 7th and 8th century, was situated on the top of the hill, closed by walls, on which there was a door, still today conserved. Inside the town-walls, the church of San Michele Arcangelo: the restoration of 1964 has radically modified the inner structure of the church, that keeps two beautiful canvasses, dated between 16th and 17th century: San Galgano praying, and the Madonna of the Rosary; but the most important object is the reliquiary that contains the head of San Galgano. Near the door of the castle, there is the church of San Martino, that belonged to the Benedictines Monks of the monastery of Santa Serena, that moved here after the destruction of the castle near which their abbay rose, in the 12th century.