Being built on the promontory of Ansedonia by the Romans who have defeated the Etruscans, its name probably derives from the previous Etruscan village Cusia which location was actually later attributed to the present nearby town, Orbetello.

The ancient walls, strenuously defended through the centuries by a thick plant curtain, are visible today for a very wide stretch and enclose the remains of the ancient city – the itinerary of about one km and a half.

Inside the walls there are the remains of numerous private houses, but also the remains of an ancient tank and the Forum, the Atria, the Basilica and the temple of Concordia which testify to the fact that there used to be a flourishing village which richness derived from the control over the underlying port.

Inside the archaeological site there is a small recently renovated museum that preserves the finds which were found during the excavations and illustrates one of the most important cults of the area, that of Mater Matuta.

For information on opening times please contact the telephone number +39 0564 881421 during office hours.