Explore the mysterious underground world of the Catacombs in Paris on this 1.5-hour tour. Meet your guide and head underground to enjoy a narrated tour of the tombs. Hear the history behind this labyrinth of tunnels, which contains the bones of more than six million people. Numbers are limited to 10 people on this small-group tour, so you'll enjoy a more personalized experience of the world-famous Catacombs.