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

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

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

A multi-storied adobe complex has been inhabited for more than a thousand years.

A hotel with a rich Wild West history of miners and bootleggers.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

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

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

Even in death, he's still your huckleberry.

This restored farmhouse is a time capsule of a 19th-century Colorado homestead.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

The world's largest sticker ball weighs in at a mighty 231 pounds.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

A tribute to Loveland’s most famous sweethearts, who helped spread cupid’s message to millions.

A downtown park built on top of unclaimed graves.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

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

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The site where a nuclear bomb was lowered over 8,000 feet underground and detonated as an experiment in natural gas extraction.