Visit the Paris Catacombs
Paris sometimes looks a little like Swiss cheese. Between the metro, the sewers and other tunnels, the capital city seems to have several different levels. In fact, the entire southern part of the city is crisscrossed by a very specific underground network that is known throughout the world as the Paris Catacombs. These former quarries were transformed into a municipal ossuary in the 19th century, and is quite a fascinating network of tunnels filled with skeletons and skulls! Learn all there is to know about visiting the Paris Catacombs.
