It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

A statue of the owner stands outside of this museum, once the most popular brothel in town.

The largest source of fossilized insects anywhere.

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

The largest self-built castle in the U.S., six decades in the making.

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

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

This super steep hike ascends 2,000 feet in less than a mile.

This enigmatic building features numerous architectural styles.

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

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

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

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

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

Inside this shop, visitors are treated to a unique blend of natural history and art.

Victorian "Fancy Craft" Hair Wreaths and Relics.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

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

A mental health hospital dating back more than 139 years, now features a museum.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

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

Massive still life just off the highway in Kansas.

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