This famous city eluded concrete detection until the early 2000's.

A deadly ancient portal to the underworld.

The ancient latrines of the Greeks, in all their public glory.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

Roman ruins top white travertine terraces formed by ancient hot springs.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A Turkish ghost town abandoned in a population exchange with Greece.

American bison herd descending directly from a Bronx Zoo breeding program that saved the species from extinction.

Very likely the only museum in the world that celebrates the glory of the humble banjo.

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

An acoustic anomaly with a mysterious cause.

An oil baron's wild paradise and the winner of an ill-fated air race.

The United States's largest hand-dug well is topped with a state-of-the-art museum.

Home to Hollywood history and a very special salt crystal.

Cannon designed to fire an atomic warhead.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

One of the Eight Wonders of Kansas and the first official National Natural Monument these stark formations look like nature's Stonehenge.

Home of mutant livestock.

Roman ruins, natural methane fires and a lovely beach.

Mediterranean castle on a tiny Turkish island.

Live a night as a Byzantine King, with a minibar and private jacuzzi.