This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

Ancient pueblos built into the base of a natural canyon wall.

A spiritual vortex among the red rocks in Sedona.

America's only nuclear missile silo open to the public.

This historic national park is covered in the stunning ruins of red rock pueblos.

A reproduction of earth's many biomes.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Larger-than-life cut-out murals of James Dean and Elizabeth Taylor, dedicated to their 1956 film ‘Giant.’

One of El Paso's oldest dives may have inspired the classic Marty Robbins song.

Get your gift of the gab on Route 66.

The petroleum industry brings you the joys of hydrocarbons and largest collection of antique oil rigs in the world.

The "world’s largest honky-tonk" also has its own indoor rodeo arena.

Some of the best pastries in "the Czech heritage capital of Texas" come from a gas station off I-35.

Modern technology and live displays tell the story of the Pacific during WWII for the Internet generation.

This old abandoned sign flickers to announce a motel that isn't even there.

A spring-fed pool so deep it's used for scuba diving as well as swimming.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

Tracks near this Texas nature site were once thought to support the Creationist belief that man and dino coexisted.

Mysterious glowing orbs float through the desert night.

A Prada store in the West Texas desert that is never open for business.