This angular Dwarven tunnel cuts through a mountainside in Glacier National Park.

The only road through the heart of Glacier National Park.

Eternal resting place of the grave robber and murderer who served as inspiration for many of cinema’s famous madmen.

One of Frank Lloyd Wright's final works was this UFO church.

Robots, lasers, and whoopee cushions, oh my!

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

This striking art museum holds an amazing series of curiosity cabinets.

This replica small town lets visitors take a stroll through the story of progress in the U.S. via thousands of Americana artifacts.

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

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

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

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

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

Victorian "Fancy Craft" Hair Wreaths and Relics.

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

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

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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

There are eight natural springs around town, each with a slightly different taste.

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

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

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

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