Piancastagnaio rises on the south-eastern slopes of Mount Amiata. The name of the place probably derives from a combination of “piano” (plain) and “castagnaio,” coming from the Latin “castanea.” The latter refers to the abundance of chestnut woods in the area. The town was founded in the Middle Ages and then ruled by the Aldobrandeschi family, who built an impressive fortress that still stands today. Among the most important things to see in Piancastagnaio are the Church of St. Bartholomew, the Sanctuary of the Madonna of St. Peter, the Church of St. Mary of the Assumption, the Municipal Palazzo and the Aldobrandesca. Don’t miss the traditional “Sagra della Crastata” (Chestnut Festival), held every year on November 1st. Attendees can taste the delicious, local, chestnut-based specialities, along with local wines.