Century-old shop, specializing in Occult products.

A popular swimming hole that hides one of America's most deadly diving spots.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

According to one local tradition, the entrance to the Voodoo underworld can be found in New Orleans through seven gates scattered throughout the city's French Quarter.

This massive wooden building contains a giant Buddha, healing pillars, and tame deer wandering the grounds.

The bizarre visions of H.R. Giger, tucked away in a Swiss medieval city.

Yale University's home for rare works, including the mysterious Voynich Manuscript.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

Hanging over one of Japan's "hidden valleys," these vine bridges must be remade every three years.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This beautiful natural train tunnel is said to grant the wishes of visiting lovebirds.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

Sleep snuggled in a sphere suspended atop the forest canopy of Vancouver Island.

Experience park where visitors are told to expect the unexpected.

James Turrell's total color immersion art installation, hidden on the top floor of a luxury handbag shop.

The most alien-looking place on Earth.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

A museum dedicated to the alleged Roswell Incident.

The ancient tomb acts as a calendar that keeps perfect time.

Once thought to be the oldest living tree in the world, Methuselah was germinated before the Egyptian pyramids were built.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

Perfectly preserved ancient monastery in an impossibly dramatic location on a rocky island in the Atlantic.