Trivia: Haunted catacombs lie beneath which of these European cities?
Paris
Oslo
Milan
Barcelona
The correct answer is Paris
So why is this answer correct? : Located 65 feet below Paris is a mass grave containing around 6 million skeletons, which were moved there from overcrowded cemeteries during the 18th century. Today, the catacombs span nearly 200 miles, though only a small portion is available for public tours. Visitors have reported eerie happenings, disturbing noises, and feelings of unease while exploring these chambers.