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

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

Two creeks flow out of either end of this canyon in opposite directions.

A funhouse dummy that turned out to be a real life mummy, Elmer McCurdy is an urban legend come true.

A peculiar forest that was handcrafted for government experiments.

A detached cement mixer has been transformed to resemble a relic from some obscure NASA mission to Oklahoma.

This little slice of old Jerusalem in Oklahoma is the evolution of a 90 year old passion play.

The granite monument is engraved with the image of the talking horse's head coming through a barn door.

Toss a Frisbee through the ruins of this Colorado gold mining town.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

A river runs through this remote valley in a very unexpected way.

Unlike most arches, this geological oddity formed in a volcanic dike.

This Chinese-style quartz sundial was saved in its final hour.

A stark reminder of the huge nuclear weapons plant that once stood on the site and its effect on the surrounding area.

This interpretive path lets you get up close and personal with dinosaur bones.

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

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

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

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

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

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