Herculaneum
Overlooking Herculaneum, buried during the volcanic eruption of Mount Vesuvius in August, 79 CE. A succession of six pyroclastic flows and surges buried the city's buildings from the bottom up, causing them little damage and preserving almost intact structures, objects and victims. A layer of dense tuff, consolidated volcanic ash, up to 25 meters, formed an airtight seal over Herculaneum for 1,700 years. In time a modern town, Resina (renamed Ercolano in 1969) was built over it.
Photo by Ludo Kuipers, Tue Oct 25, 1994