Hidden in a small town in Vidracco in Piedmont is the secret of the world’s largest underground temple, certified by the Guinness Book of Records. It is located at 850,000 m³ spread over five levels reaching a depth of 72 metres. This temple is a network of chambers and corridors, decorated with mosaics, bas-reliefs, paintings and stained glass windows in bright, vivid colours. There are seven main halls, each of which has a mystical name: the Hall of Water, the Hall of Earth, the Hall of Spheres, the Hall of Mirrors, the Hall of Metals, the Blue Temple, the Labyrinth. But this epic construction is surely the legacy of some arcane population with a millenary culture.
