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 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.

Unlike most arches, this geological oddity formed in a volcanic dike.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

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

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

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

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

A whimsical monument marks the highest point in Kansas, not that you could tell by the looks of it.

This erect, phallic geological spire wasn't always named so domestically.

Roaming bison and a spectacular view at the highest point in Nebraska.