Viaduc d'Austerlitz  Lock Up Your Train Tunnels
  Bookmark and Share

Paris underground is so big, it would take a lifetime to explore it all. There are pneumatic post tunnels, heating tunnels, telephone tunnels, sewers, aqueducts, train tunnels, service tunnels, power tunnels and of course the quarry networks, aka: the catacombs.

Here we are with Marc of infrared.fr taking time out in one of those partially disused power tunnels.