carved plate
catacombs of paris
cave
gallery
rue des catacombes
sign
trespassing
underground quarry
Rue de Catacombes - Carved plate recently created by urban cavers
Catacombs of Paris (off-limit area), about 20 meters (60 feet) underground, under Paris city center.
This is a part of the 200 Km network of ancient tunnels not opened to the public, but regularly visited by trespassing urban cavers called "cataphiles". See more information in the description of the photo album.