Ercolano [ɛrkoˈlaːno] is a town and comune in the Metropolitan City of Naples, Campania of southern Italy. It lies at the western foot of Mount Vesuvius, on the Bay of Naples, just southeast of the city of Naples. The medieval town of Resina - read Resìna - was built on the volcanic material left by the eruption of Vesuvius (AD 79) that destroyed the ancient city of Herculaneum, from which the present name is derived.