America's smallest "national forest" has only 33 trees.

A hotel with a rich Wild West history of miners and bootleggers.

A seven-story 1920s mausoleum outside Denver houses thousands of remains.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

A fake mine that was made using real mining techniques which is also used as a community center.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

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

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

See six states, pickled freaks, rocks, and antiques.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

A little-known hot spring haven right below the highway.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

La Monte Young and Marian Zazeela's "Dream House" will immerse you in an ever changing world of sound and light.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A terrific purveyor of natural history objects and curios.

A masterpiece of LGBT art has been restored in what may now be the most valuable restroom in America.

This hidden sculpture garden full of Wild West art is one of San Antonio's best-kept secrets.