Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

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

The fairy tale castle of the "fairy-tale king."

A tiny theater hidden in an alley plays a constant stream of short silent films for anyone willing to peer through the peephole.

Medicinal spa created with the discharge from a geothermal energy plant.

The final resting place of New Orleans' most famous voodoo priestess.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

A collection of oddities including Dr. Kevorkian's suicide device, the Thanatron.

Elevated freight railway turned wildly successful urban park.

A walk through the historic city center, under the streets of Seattle.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

Try not to get slimed in Tribeca.

A tour of underground Berlin takes you through WWII air raid shelters and tunnels used to smuggle people out of East Germany.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

France's most famous cemetery, with some of its most curious tombs.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

The world's only museum devoted to the wonders of fluorescence.

The history of occult science is turned into a creepshow at this lurid Prague tourist attraction.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.