The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

Despite time, colonization, and the brutal New Mexican heat, these Pueblo ruins still stand.

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

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

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

This 15th-century structure had a long, tortuous journey to its current location.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

Three hundred years of preserved Spanish colonial history in San Antonio.

This constitutionally sound Muffler Man harkens back to the days these attractions were a must-see.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

The remains of a World War II-era Japanese American internment camp dot a windswept Colorado hill.

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

This statue of Olympic hockey coach Herb Brooks immortalizes one of the greatest moments in American sports history.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

When ecosystems collide in the arid Southwest.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

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

Chelsea's soldiers were given strict orders when crossing this historic bridge.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

The highest bridge in America was built for an almost unnervingly small amount of money.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

An ornate Art Deco tile mosaic representing Nebraskan life, both modern and prehistoric.