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.