Beneath Paris’s 14th arrondissement, the Catacombs preserve the remains of millions of people in former limestone quarry tunnels. The city transferred bones from overcrowded cemeteries here from the late 18th century, and the open route passes through dim galleries where skulls and bones line the walls. Informative plaques and an audio guide explain how the site became an ossuary. It is a solemn, unusual stop for anyone interested in Parisian history, but narrow passages, low ceilings and many stairs make it unsuitable for some visitors.
From limestone quarries to an ossuary
The tunnels beneath Paris began as limestone quarries. By the late 18th century, the city’s cemeteries were overcrowded and linked to serious public health concerns. Authorities moved human remains from closed Parisian burial grounds into the former quarries, creating an underground ossuary.
The transfers began in the 1780s and continued over time. The bones were arranged along the tunnel walls, turning parts of the quarry into the site now known as the Catacombs. The remains of around six million people are associated with the ossuary. The number gives the visit its scale, but the site is also a record of how Paris dealt with the pressures of a growing city.
What to look for along the route
Only part of the extensive underground network is open to the public. On the visitor route, galleries lined with skulls and bones lead through the former quarries. Plaques provide context, and an audio guide adds information as you move through the space.
Several named features give the walk more detail than a passage through bone-lined walls alone. The Lacrymatoire sarcophagus is dedicated to the poet Nicolas Gilbert. The Samaritan fountain was once used to make mortar, while the Crypt of the Passion has a ceiling supported by a pillar formed from skulls and bones. The Sacellum crypt contains an altar where bones were blessed. These places show how the former quarries were adapted and arranged as an ossuary.
Planning the underground visit
The route involves a descent and ascent on narrow spiral staircases, as well as passages that can be tight and low. The floor is uneven in places. Comfortable shoes help with the walk, and a light jacket is useful because it is cooler underground. The stairs and confined sections mean this visit is not a good fit for people with limited mobility or claustrophobia.
Timed entry limits the number of people inside at once, which helps keep the walk more measured. Reserve a ticket online ahead of your visit, since entry can sell out. Smaller bags are easier to manage in narrow tunnels. Treat the remains with care: do not touch the bones, and do not use flash photography.
FAQ
Do you need to book Catacombs of Paris tickets in advance?
Yes. Visitor numbers are limited, and tickets can sell out. Book online before your visit.
How long does a visit to the Catacombs of Paris take?
Allow about an hour for the walk through the underground route.
Are the Catacombs of Paris suitable for visitors with limited mobility?
The route includes narrow spiral staircases and tight passages, so it is not recommended for people with limited mobility.
Can you take photos in the Catacombs of Paris?
Photography is allowed, but flash photography is prohibited. Do not touch the bones.
