Pompeii was buried by a thick layer of ash and pumice stones. This Roman town is considered as Unesco heritage site: it is impossible to remain indifferent to the ruins of this ancient town. Pompeii is the only case in the world where it is still possible to find an entire Roman city two thousand years later.

The excavations of Herculaneum cover an area of about 5 hectares. The particular details of the burial of Herculaneum, which was submerged by streams of pyroclastic material solidified for an average height of about 20 meters, determined a preservation phenomenon which is absolutely original. Without comparisons to Pompeii, Herculaneum has given us back charred wooden structural and architectural parts of the buildings, preserved even in their fragility due to the lack of oxygen.