This historic stone barn is the former home of legendary cattleman Charles “Lonesome Dove” Goodnight.

This memorial pays homage to Pueblo's four Medal of Honor recipients.

This advertisement for talcum powder was painted on the rock face and has since defied removal.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

All that remains of this once-booming mining town are the ruins of a saloon.

The temporary burial site of the man who shot and killed Jesse James.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

See six states, pickled freaks, rocks, and antiques.

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

Dispersed across 45-acres, 39 structures house a massive collection celebrating American Folk Art.

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

No Gordon Lightfoot song, only a barebones monument to greed.

The last remnants of Fort Pitt also hold the distinction of being the oldest structure west of the Allegheny Mountains.

This National Natural Landmark is one of the best examples of a “mass wasting” in the world.

The site of the gruesome massacre—and maybe cannibalism—of five men, a tragedy that made Alferd Packer infamous.

The final resting place of the businessman-turned-astronomer who helped discover Pluto stands near his observatory.

A fake mine that was made using real mining techniques which is also used as a community center.

Hidden high on a remote mountain peak is a humbling and mysterious Vietnam War memorial.

This giant slab of driftwood marks the beginning of the Winnemucca to the Sea Highway.

This heavily worn bas-relief was once an honored fertility symbol.

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

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

This marker identifies the location where three states converge.