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

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

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

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.

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.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

The largest source of fossilized insects anywhere.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

Moonbows over Kentucky.

Outstanding collection of 19th century medical instruments includes a life-size figure cast from as many as 200 cadavers.

A table rock formation that has been intriguing West Virginians for years.

A brewery warehouse which doubles as a circus bigtop.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

Once featuring over 60 miniature replicas of famous Chinese locations, the Splendid China theme park was completely abandoned and is now mostly rubble.

An unfinished rail tunnel that has since been used to house cheese and bats.

Artistic cabins actually grow deep in the Canadian wilderness.

This rocky spread has been squeezed up directly from the bowels of the earth.

The oldest badlands in North America, Makoshika State Park takes it name from the Lakota words for broken land.

These millipedes glow not out of attraction, but as a not-too-subtle warning.