This spectacular track has run continuously since 1882.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A little-known mural reveals the hydrological reason for Atlanta's founding in this location.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

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

Community owned and operated, this property is home to a diverse set of nudists.

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

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

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

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

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

A collection of fading fantasy tchotchkes lines this dirt road in the Colorado wilderness.

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

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

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

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

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

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

This 19th-century ranch is being transformed into a residential library with thousands of books about the natural world.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

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

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

Paleoamericans built these ancient walls high in the Colorado Rockies as part of an extensive hunting system.