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

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

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A Wild West jailhouse that slid down the mountainside.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

A self-built castle made by a mysterious man.

This striking public art installation is suspended above a public park, designed to gently move in the breeze.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

A medical facility that has been kept frozen in time.

America's most famous museum of medical oddities is home to the remains of Albert Einstein's brain.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

Home of an evil witch famous within southern folklore.

A toxic ghost town sitting atop a massive coal fire.

A church of bones, decorated with 40,000 human skeletons.

The final resting place and once home of the Bandit Queen of the West.

This haunted hotel built on natural springs once served as a hospital for a quack doctor promising a cure for cancer.

Europe's second largest ossuary wasn't discovered until 2001.

A lake with hundreds of ancient skeletons surrounding it. The surprise is what killed them.