This nearly abandoned town was once a thriving mining community until a series of fires.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This interpretive path lets you get up close and personal with dinosaur bones.

This super steep hike ascends 2,000 feet in less than a mile.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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

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."

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

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

Rainbow-hued in the summer and crystalline in the winter, this salty lake has inspired battles, temples, and plenty of awe.

A decommissioned tube carriage within a London museum hosts a regular pop-up supper club.

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

This walkway is so narrow it needs its own light to stop pedestrian traffic jams.

This automated sculpture of two men peeing will spell out text messages with their micturition.

A 400-year-old mummified arm dangles from the ceiling of St. James the Greater, serving as a warning to thieves.

This Prague museum collects brutalist relics and memories from the country's former Soviet rule.

This doorless 20th-century elevator doesn't stop or slow down.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

The first museum in the world devoted to sexual gadgetry.

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

A Jenga-style cylindrical tower of books that appears to go on forever.

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