Beneath the streets of Paris lies a world that's equal parts history, engineering, and nightmare fuel. In this episode of Folklore & Bullshit, Keegan and Amber descend into the Paris Catacombs to uncover why millions of human remains were moved beneath the city, how ancient limestone quarries became one of the world's most infamous ossuaries, and the eerie legends that refuse to die.

From the haunting story of Philibert Aspairt, the man who entered the tunnels and was never seen alive again, to tales of hidden chambers, underground explorers known as cataphiles, mysterious discoveries, and the strange story of an abandoned underground cinema, we separate documented history from urban legend and ask one question:

How much of what you've heard about the Paris Catacombs is actually true?

Grab a flashlight... an ...