All  

Egypt-EarlyBird-wide-ad-AO-TOURS-Main-13

The Dark Underworld of the Paris Catacombs

Beneath Paris, the bustling European city, lies a dark subterranean world holding the remains of 6 million of its former inhabitants. These are the Paris Catacombs: a network of old caves, quarries and tunnels stretching hundreds of miles, lined with the bones of the dead.