Less a museum than a bizarre fantasy world created by artists and engineers.

Sniff the Titan Arum's rotting flesh.

Monasteries on rock pillars, once accessible only by frayed ropes.

A particularly creepy abandoned hospital that sparks interest for lovers of the supernatural.

A clear blue swimming hole with hidden caves, still unexplored.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

A island reachable by a causeway at low tide is possibly one of the earliest Western European locations to be identified in text.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

This hidden Art Nouveau courtyard is an opulent feast for the eyes.

Tubing through a cave lit with glowworms is a magical underground experience.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

A reproduction of earth's many biomes.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

A three-story copper skybridge connects two Manhattan buildings with Art Deco luxury.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A master of trompe-l'oeil creates a stunning, tourist-fooling dome out of a flat ceiling.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Hidden in an ordinary Midtown building is a one-room museum dedicated to the greatest escape artist.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The name of this famed hospital was once a byword for the horrors of medical and psychiatric care.

A fiery crater has been burning in the Karakum Desert since 1971.