19 Creepy Catacombs Around the World You Can Visit
Catacombs—underground rooms and tunnels used as cemeteries—date back to first-century Rome, but the most famous (and infamous) were created across Europe in the 17th century. Overcrowding in Paris’s more traditional burial spaces, as well as sanitation issues, led authorities to turn the miles of tunnels connecting quarries under the city into crypts. It’s believed that more than six million…
We haven't written up this one. Atlas Obscura has the full story — the link below goes straight to it.
