Catacombs of Paris

The Catacombs of Paris contain the bones of more than 6 million Parisians, transferred from different cemeteries of the capital for safety issues between the late eighteenth century and the mid-nineteenth century. This underground labyrinth is housed in the old quarry galleries (whose stones were used for the construction of the city). To get into the catacombs, visitors must go down the 213 steps reaching 20 meters underground to travel the almost two kilometers of tunnels open to the public (less than 1% of all the catacombs). The temperature is constant: 14 °, all year round.