Where Aleister Crowley taught magick in "La Chambre Des Cauchemars," his "Chamber of Nightmares."

Leveled by an earthquake, this Italian village is now preserved as a massive concrete art project.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

Built on a medieval synagogue, this church has a burial crypt, tunnel system, and Jewish ritual bath hiding deep underneath.

This ostentatious Italianate palace of an Oklahoma billionaire is filled with several themed mini-museums.

Anatomical cabinet holds unexpected treasures.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

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

Even in death, he's still your huckleberry.

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

The clock that sets them all.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

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

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

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

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

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

The highest bridge in America was built for an almost unnervingly small amount of money.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.