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

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

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

Oddly shaped rock formation, misassociated with a nearby utopian community.

A recreation of an Old West apothecary full of curios.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

A Texas cave network is home to some of the world's most spectacular-looking and bizarrely named mineral formations.

Housed in a century-old building, this museum's dedicated not just to soft drinks, but to the free enterprise system.

Decades of discarded bottle caps line this alleyway, a fixture of Texas A&M.

Twenty churches beautifully painted by 19th-century Czech and German immigrants in Texas.

The world's largest squirrel statue clutches a pecan bigger than your head.

A 24-hour vending machine restocked daily with homemade full-sized pecan pies.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A recreated Stonehenge stands in a country field, complete with Easter Island moai heads standing as sentries.

These boots are made for selfies.

Tile mosaics and quotes from Pablo Picasso add an artistic flair to these bus stop benches.

Colorful curls of hand-blown glass form a captivating tower in San Antonio's Central Library.

Conflicting markers on its floor tell a tale of two city centers in San Antonio.

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

In this roadside "community for the small," abandoned toys gain new lives.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

A serene garden path lined with 36 haiku stamped into clay stones.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.