The highest point in Texas is capped by a big silver pyramid.

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

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

This sparsely populated town offers a look back in time.

Home to New Mexico's longest bar, this watering hole also has a mining museum and a haunted history.

An annual festival celebrating Colorado's most famous frozen corpse.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

When ecosystems collide in the arid Southwest.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

An eclectic collection of artifacts from the Wild West is preserved in a remote fictional pioneer town.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

A sharp bend in a dramatic river canyon cut through red rocks.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

The unusual patterns in this rock formation result from two distinct modes of weathering.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.

A tunnel with windows, so you don't miss out on the impressive views.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

Trails through lava-carved tube-caves display sparkling bacteria and a rich history.

The world's last remaining store of its kind.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.