Catacombes de Paris Entrance

The Catacombs of Paris or Catacombes de Paris are an underground ossuary in Paris, France. Located south of the former city gate (the "Barrière d'Enfer" at today's Place Denfert-Rochereau), the ossuary holds the remains of about 6 million people and fills a renovated section of caverns and tunnels that are the remains of Paris's stone mines. Opened in the late 18th century, the underground cemetery became a tourist attraction on a small scale from the early 19th century, and has been open to the public on a regular basis from 1874.