In the late 18th century, Paris faced a grave crisis—its overcrowded cemeteries posed significant health hazards to the city’s residents. To solve the problem, authorities began transferring human remains to abandoned limestone quarries beneath the city. Thus, the Paris Catacombs were born, an ossuary where walls are lined with meticulously arranged skulls and bones.
This historical necessity created an underground necropolis, but the unsettling atmosphere and sheer volume of human remains have given rise to tales of restless spirits and ghostly phenomena.