Catacombs of Paris, France, Underground ossuary in Paris.
The Catacombs of Paris are a network of underground tunnels that serve as a mass grave for millions of people.
Created in the late 18th century, the catacombs were a response to the overcrowding of Parisian cemeteries.
The Catacombs have become a cultural landmark, attracting thousands of visitors each year.
Visitors are advised to wear comfortable shoes and bring a jacket as it can be quite cold underground.
It is said to hold the remains of over six million people.
Location: 14th arrondissement of Paris
Inception: 1787
Official opening: 1809
Accessibility: Wheelchair inaccessible
Address: Place Denfert-Rochereau 75014
Opening Hours: Tuesday-Sunday 10:00-20:30
Phone: +33143224763
Website: catacombes.paris.fr
Sources: Wikimedia, OpenStreetMap