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

The legendary building that needed ghostly approval before being built.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

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

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

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

On Japan's Tashirojima Island, cats are king.

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

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

Dramatic river bend surrounds a natural red-rocked pedestal.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

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

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

These fantastically named natural pools look like something out of a Scottish myth.

An exquisite tunnel of cascading flowers.

An enormous, inside-out glass globe built in 1935.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

These old stone ruins in the Oregon wilderness were once bathrooms and are steeped in legends of murder.

A snapshot of the city's fascinating voodoo culture.

A collision of human error and natural geothermal pressure created this rainbow-colored geologic wonder.