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

A unique arch graces the Dolores River Canyon near the Hanging Flume.

A coal fire has been burning underground here since 1896.

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

16,500-acre ranch filled with American heritage, geological wonders, and a giant pile of tires is the crown jewel of an intriguing tug-of-war.

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

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

Possibly the world's only drive-in movie theater with an attached motel.

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

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

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

Colorado's only true geyser is hidden within the San Juan National Forest.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

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

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

A little-known hot spring haven right below the highway.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

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

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

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

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.