Legends surround this jagged rock formation in the New Mexico desert.

A dazzling display of red rocks weathered into spires and hoodoos.

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

The only retired U.S. nuclear missile silo that is open to the public.

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

The hallowed remains of a 900-year old Ancestral Pueblo great house.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Oddly shaped rock formation, misassociated with a nearby utopian community.

This historic stone barn is the former home of legendary cattleman Charles “Lonesome Dove” Goodnight.

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

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

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

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

Possibly the world's only drive-in movie theater with an attached motel.

When ecosystems collide in the arid Southwest.

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

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

This memorial pays homage to Pueblo's four Medal of Honor recipients.

The largest self-built castle in the U.S., six decades in the making.

A mental health hospital dating back more than 139 years, now features a museum.

Roaming bison and a spectacular view at the highest point in Nebraska.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.