The ancient town of Saturnia on the road north of Manciano is famous for its remarkable spa and extensive free baths, and takes its name from the Roman god Saturn, who legend says grew tired of the wars of humans and sent a thunderbolt to earth, fracturing the ground and creating the thermal springs, which would pacify mankind. Should work.

Saturnia itself was an Etruscan settlement, then a Roman colony after 183BC. There are extensive ruins of walls, gates, numerous tombs, and the fortress. In 1300 Saturnia became the hideout of outlaws and bandits, so the Sienese killed or dispersed the population and razed it to the ground. It remained abandoned and forgotten for centuries until being rediscovered in the late 19th century, when the spa was rebuilt.