Catacombs are manmade underground cemeteries and religious spaces, some of which have survived thousands of years relatively intact. The Catacombs of Paris, for instance, holds the remains (mostly skulls) of 6 million people throughout miles and miles of underground tunnels. Other catacombs were left to age in dark silence for centuries, forgotten by history until someone happened to stumble upon them. We've done some digging of our own to bring you our list of the world's 10 creepiest catacombs.
About 8,000 corpses and 1,200 mummies were laid to rest in the Catacombs of the Capuchins of Palermo, Sicily. Many friars and monks were buried here, and after a while, it became a status symbol to be buried in the catacombs. Some corpses here are extraordinarily well preserved thanks to a method recently rediscovered by researchers.