14. The entrance to the catacombs is very discrete and, once you step inside, you pay the fee and are escorted through several thousand feet of tunnels that are opened to the public.
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16. Above the door outside are the words (in French): “Stop! This is the empire of death.” This is a bone collection from 5 to 6 million people
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19. A little history… Most of the larger churches in Paris once had their own cemeteries, but city growth and generations of dead began to become overwhelming. From the late seventeenth century, Paris' largest Les Innocents cemetery (near the Les Halles district in the middle of the city) was saturated to a point where its neighbors were suffering from disease due to contamination caused by improper burials, open mass graves, and earth charged with decomposing organic matter.
21. After almost a century of ineffective decrees condemning the cemetery, it was finally decided to create three new large-scale suburban cemeteries and to condemn all others existing within the city limits. The remains of all the condemned cemeteries would be moved discreetly to a renovated section of Paris's abandoned quarries. The use of the depleted quarries for the storage of bones was based on the idea of Police Lieutenant General Alexandre Lenoir
23. The catacomb walls are covered in graffiti dating from the eighteenth century onwards. Victor Hugo used his knowledge about the tunnel system in Les Misérables . During World War II, Parisian members of the French Resistance used the tunnel system. Also during this period, German soldiers established an underground bunker in the catacombs below Lycee Montaigne, which is a high school in the 6th arrondissement.
24. As you walk through the catacombs, you’ll see that the walls are completely lined with nicely arranged bones—I guess as nicely arranged as can be with bones!
25. The lighting inside the catacombs is eerie at some places making in very dark, indeed!
26. The tunnel system is complex, and though some tunnels have plaques indicating the name of the street above, it is still quite easy to get lost with some passages being extremely low or narrow and others that are partially flooded. Entrance to the catacombs is restricted. The portion of the catacombs open to the public is only a small part of an extensive network of underground tunnels, which spans almost 200 miles!
27. There are also aging telephone wires, pipes, and things like that which can hinder progress. Cave-ins, although somewhat rare, do occasionally occur. So a good guide is necessary, even though many of the guides will still refer to a map from time to time. Because of these potential dangers, since November 1955, it has been illegal to access the catacombs unescorted by officials and there are special police who patrol the catacombs. However, secret entrances do exist throughout Paris and it is possible to enter the catacombs via the sewers, metro, and certain manholes. Some unofficial visitors also hold keys to certain official entrances.
28. The walls, and many ceilings of the catacombs are made entirely of bones, usually organized by type of bone and held together with some type of mortar.