This is just the thing for anyone with morbid interests: what you'll see after a descent through dark, clammy passages is Paris's principal ossuary, which also once served as a hideout maze for the French Resistance. Bones from the defunct Cimetière des Innocents were the first to arrive in 1786, when decomposing bodies started seeping into the cellars of the market at Les Halles, drawing swarms of ravenous rats. The legions of bones dumped here are stacked not by owner but by type—rows of skulls, packs of tibias, and piles of spinal disks, often rather artfully arranged. Be prepared for stairs and a long underground walk; the floor can be damp, so wear appropriate shoes. Note that you won't be shrouded in tomblike darkness: the tunnels are well lighted. Among the nameless 6 million or so are the bones of Madame de Pompadour (1721-64), laid to rest with the riffraff after a lifetime spent as the mistress of Louis XV. Unfortunately, one of the most interesting aspects of the catacombs is one you probably won't see: cataphiles, mostly art students with a taste for the macabre, have found alternate entrances into the 300 km (186 mi) of tunnels where they make art, hold parties, and generally raise hell.
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