The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

Possibly the world's only drive-in movie theater with an attached motel.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

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

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

A technicolor place of worship for Elevationists.

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

An abandoned cyanide mill is now a haunting magnet for graffiti and illegal parties.

This former lieutenant governor's home is brimming with curiosities.

A breathtaking 19th-century trail overlooks Lake Tahoe.

This dry lake bed contains the oldest known petroglyphs in North America.

Mysterious meeting place for UFO hunters near Area 51.

This massive geographical sculpture is so subtle, it's possible to pass by it without noticing.

If you want to take a peek at Area 51, this is legally as close as you're going to get.

A collection of haunted objects and macabre oddities under one roof.

Eulogizing an unknown man's unusual demise.

Water of undetermined depth has attracted rare fish and cult leaders alike.

An eatery for UFO seekers on the Extraterrestrial Highway.

A mining town once rife with murderous disputes over its copious treasures now creates income as a popular spot for photo shoots.

A new kind of theme park for adults off the Las Vegas Strip.