This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This innocuous New Mexico storefront was once the secret jump-off spot for Manhattan Project scientists.

This giant pocket watch is the third iteration of a local landmark that has been standing just off the Santa Fe Plaza for over 100 years.

The ruins of this abandoned fort now stand as a picturesque reminder of America's march West.

Brightly colored 30-foot-tall totems light up the desert sky just outside Las Vegas.

The world’s largest concentrated solar plant generates as many problems as megawatts.

This giant temperature attraction created some giant electric bills.

The "Fun Spot of the Desert" is now a haunting ruin, and a reminder that putting a water park in a desert is a bad idea.

A eight-foot-tall statue resides in the heart of Pennsylvania anthracite coal country.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

A museum dedicated to the mysterious cryptid.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

A tiny town’s tiny museum with some gigantic residents.

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

This iconic science fiction house still looks like something from the future.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

This sidewalk tribute honors Colorado's great culinary creation.

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

This museum offers an actual time machine back through Colorado's past.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.