In the three rooms are materials of prehistory and protohistory of the ancient city, coming from the village "castellucciano": smoothed basalt stone axes, tiny cointainers and ceramic fragments worked without the use of a lathe, with an essential linear engraved decoration.
The exhibits belonging to the period from the ninth to the middle of the 5th century BC witness the coexistence of Sicels and Greek cultures in the town: antefixed of religious buildings, "pithoi", a domestic arula on which is depicted a boar, a "kernos" with three small cups and the greater crater of Euthymides, with simposium and "amazzonomachia" scenes, used for public banquets.
The findings of the classical and Hellenistic period, up to the destruction of the city (211 BC), consist mainly of earthenware coming from the necropolis and urban sanctuaries of Demeter and Persephone, including several busts of the latter, to which are added a large "black painted" lamp with three spouts and a fish dish, perhaps from Syracuse.
A limestone statue without head, most likely of the goddess Demeter found in the central sanctuary in 1955, provided the material to show that the famous "Aphrodite" of the Paul Getty Museum in Malibu (USA) comes from Morgantina.
On 13 December 2009, two acroliths (two heads, three hands and three feet in marble) from the Greek archaic period, probably belonging to the goddesses Demeter and Kore, very revered in antiquity in Central Sicily, returned from the University of Virginia Museum.