The most important site in the comune is Saturnia, an old Etruscan town with medieval walls, remains of a Roman road, and best known for its thermal springs dating to the Roman period and still in use today. The comune is further known to students of Late Antiquity as the place where the famous silver platter of Ardabur Aspar, consul in 434, was found (in the Fosso Castione, a creek near Marsiliana).