This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

The largest source of fossilized insects anywhere.

This Colorado fire station has been in continuous operation for more than a century.

The remnants of a 1970 plane crash remain high in the Rocky Mountains.

It takes a nine-mile hike to reach these hot springs, but weary hikers are rewarded with stunning views and a warm soak.

Two tall rocks sit at the center of this site, once the home of a large Ancestral Puebloan community.

Colorful Native American paintings are hidden within this small cavern.

This mesmerizing and surreal landscape features intricate patterns of white and red sandstone.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

Colorado's only active volcano last erupted around 4,000 years ago.

“You better take care of me Lord, if you don't you're gonna have me on your hands.” ― Hunter S. Thompson, Fear and Loathing in Las Vegas.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

Abandoned silver mine strewn with wrecked and twisted structures.

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

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

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

It's safe—and permitted—to walk across these twin natural sandstone arches.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

One of the American Southwest's most extensive collections of Navajo rock art.

These petroglyphs created by ancient Arizonians have withstood centuries of exposure to the elements.

This once-booming Gold Rush town is now home to a herd of feral donkeys.