The largest collection of historical roller skates in the world.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

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

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

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

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

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

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

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

Even in death, he's still your huckleberry.

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

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

One of the few surviving Panama Canal steam shovels stands outside a tiny Colorado mining museum.

An ADA-accessible trail and deck offering stunning views of Colorado’s Mount of the Holy Cross.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

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

The remains of an early 1900s dude ranch that operated until the 1970s.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

A large circus museum with summer performances.

Behind a modern brick exterior lies the oldest continuously-operating lunch-car diner in the United States.

The center of the only hemisphere that awards visitors with a commemorative coin.

A bizarre house filled with an astounding array of collections.

One of the most spectacular canyons in the world.