The city of Pompeii is a partially buried Roman town-city near Naples in the Italian region of Campania in the territory of the comune of Pompei. Along with Herculaneum, Pompeii was destroyed and completely buried during a long catastrophic eruption of the volcano Mount Vesuvius spanning two days in the year AD 79. The eruption buried Pompeii under 4 to 6 m (13 to 20 ft) of ash and pumice, and it was lost for nearly 1700 years before its accidental rediscovery in 1749.