A reproduction of earth's many biomes.

The development of this cliffside waterpark is representative of Mexico's history of co-op tourism developments.

Rumors of the occult haunt this upscale 1920s hotel.

Visitors can explore the role of mysticism throughout the ages inside this interactive museum of magic.

These former Nazi anti-aircraft towers offer a singular view of the north of Berlin in the summer, and a sanctuary for bats in winter.

Berlin's old airport.

An eerie, derelict amusement park in Berlin.

One of Detroit’s oldest blues clubs stands in defiance of the passage of time and the city’s shifting fortunes.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

Gorgeous views of Italian mountains and valleys form the backdrop of this unique open-air theater.

Hidden beneath the streets of London is a secret subway that only carried mail.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A kaleidoscopic warehouse-maze of handmade neon signs.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

Century-old shop, specializing in Occult products.

Was this cave created by Hercules's wrath, the devil, or volcanic activity?

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

This 170-year-old Swiss guesthouse built into the side of a mountain is best accessed by a cable car.

A rare pod of derelict midcentury Futuro and Venturo houses lines a semi-abandoned beachfront resort outside Taipei.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

One of the most valuable palace-garden complexes in the eastern borderlands—and one of the most haunted.

A submerged archeological park still holds the wonders of a Roman Sodom.

Countless grotesque faces stare out from this eerie Prague art wall.

This modern monument to pagan belief looks like it was transported straight from ancient times.