Devastated landscape used for hundreds of years by the Romans as their primary mining site.

Geological storytelling.

A fiery-red region of scooped out land still largely untouched by civilization, tourists or otherwise.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

A museum dedicated to the Spanish occult in a town that was terrorized by the Inquisition.

A 16th-century horror show built in a lovely Italian garden.

Walls of stone rise up from sinkholes caused by underwater erosion.

"Alleys of Stone" form natural mazes in Spanish natural park.

From buck blood to Theriak miracle tonic, this collection of Renaissance chemist's gear look's like a wizard's pantry.

A fake medieval village in the middle of Turin.

The astonishing collection of an infamous criminologist.

David Sedaris called it "The greatest shop in the world."

This Torino museum honors a soldier who kept the city safe using barrels of exploding gunpowder, losing his life in the process.