Skulls inset in walls
By the light of torches, candles or miners lights, haunting scenes centuries old appear to unfold. Mud-caked galleries, abandoned quarry caverns and even chambers containing human bones throw up their secrets.
Consulting maps, self-trained guides lead the way, while others look for opportunities to take photographs. Some paint murals, create graffiti, play music, or even work at opening blocked sections of the Mines. For the diehard, spending days on end here in the catacombs is as normal as a walk in the park.