Ruins in Arizona

This sinkhole in the Arizona desert is filled with carbonated, arsenic-rich water

The former home of the army detachment that captured Geronimo.

This Native American settlement dates back to the Pueblo II period.

The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

The stone-covered graves lie within the ruins of an Old West ghost town.

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

On the outskirts of a reborn ghost town, a decaying post office remembers the bad old days.

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

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

This abandoned horse racing track was an exercise in hubris from its inception.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

A stealthy Apache hideaway that became the haunting site of a mass grave.

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