Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

This massive home was constructed by one of the greatest conservationists in Colorado history.

This gallery is home to everything from antiques, to ancient tribal masks.

Final resting place of a 19th century gold prospector and convicted cannibal.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

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

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

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

This naturally-sourced hot spring is now home to a clothing-optional resort.

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

The largest source of fossilized insects anywhere.

The narrow mountain road that carves a path between Florence and Victor is tied to ghost towns and ghost stories.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

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

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

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

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

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

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

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.