This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

Ute tour guides have been sharing the ancient dwellings and rock art inside this large park with visitors for more than 40 years.

Beautiful scenery provides the backdrop for an abandoned coastguard facility.

An attractive alpine lake at 8,400 feet that is accessible via a paved road.

At night, this glittering musical tunnel draws skaters and photographers.

Will Geer's outdoor theater started as a mountain retreat for actors, musicians, and other artists who were blacklisted during the Red Scare.

A blast of nostalgia awaits visitors to this miniature indoor raceway.

An abandoned mine serves as a stark memorial of when mercury was a valued strategic metal.

The viewpoint for this attractive, off-the-beaten-path waterfall is reached by a paved, wheelchair-accessible trail.

Eat like a "buckaroo" at this remote restaurant.

Named after an outlaw who used the basin as a hideout.

The former home of the army detachment that captured Geronimo.

An unexpected sinkhole in a desert flat within Gold Butte National Monument.

Overflowing with shipping containers, this location has been transformed into a massive workspace for artists.

California's longest-running tourist attraction is a stump.

A 1920s home transformed into an immersive art experience, where every room is a portal to another realm.

The precious-metals strikes dating back to the 1860s are now mostly inactive, but this area has become the United States' only domestic source of lithium.

A unique local art exhibit that has continued to grow since 1989.

A unique collection of drawings that represent Fremont Native American culture.

Home to an apple tree that can produce 25 different varieties of fruit.

Sit at the "Disney table,” where Walt and his team of "imagineers" once dined on the regular.

The oldest pictographs on this decorated rock formation in California's Carrizo Plain date back as many as 4,000 years.

A planet-hunting astrograph built in the 1920s to seek out the so-called "Planet X" beyond Uranus.