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

Strange red rock formations that have been attributed to a higher power for hundreds of years.

This museum showcases the history and contributions of the U.S. Army to the medical industry, both on the battlefield and off.

Recycling meets art in this colorful barricade.

A one-of-a-kind sundial at the Very Large Array honors a radio astronomy pioneer, incorporating the original piers from his breakthrough radio telescope.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."

A National Historic Landmark with a scenic clock tower and park filled with deer and peacocks, plus a military museum.

Soldiers honored the beloved Pat with a special grave.

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

Some 2,000 carvings show this rare desert spring has been an oasis for travelers for over a thousand years.

This fireplace-turned-monument pays tribute to the assassinated U.S. president.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

Despite a recent paint job, the factory still sits empty.

This sparsely populated town offers a look back in time.

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

The ruins of Theodore Roosevelt's beloved ranch stand in a forgotten corner of a national park named after him.

This symbol of peace is appropriately positioned overlooking the Pacific Ocean.

This Old West prison built into the side of a cliff was said to be inescapable.

An off-grid art installation that encourages its visitors to imagine a world without waste.

A Looff creation in Santa Monica best described as “a California-Byzantine-Moorish-style fantasy.”