The Museum conserves archaeological material of the area, and belongs to the Museum System of Siena. Alongside the areas dedicated to dwellings, sanctuaries and the reconstruction of a chamber tomb of the 7th century B.C., is the fascinating section dedicated to divinities of health, tied to the theme of water. Particularly interesting are the terracotta pediment of a shrine found in the vicinity of Fùcoli spring and the life-size chariot in bronze driven by the goddess Selene-Diana, found in the 19th century near the Sillene spring. Considerably interesting for the knowledge of the territory in the Hellenistic age, is the reconstruction of the quarters for making wine at the farm discovered near Poggio Bacherina. Finally, one section illustrates the exploitation of the spa waters of Chianciano during the Roman age. Currently under excavation, the large spa building in the locality of Mezzomiglio is reported to have been frequented by the poet Horace on the advice of Antonius Musa, physician to Augustus.