This abandoned five-star hotel is now a five-star urban exploration destination.

Rusting, graffiti-covered tanks litter the beach of this island, once used by the U.S. military for target practice.

A ruined hotel with an unlucky history and an eerie present.

In this historic region, homes and churches are carved into ancient volcanic rock formations.

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

Carvings in Turkey's Marble Road may have directed ancient Romans to a hidden brothel.

Glacial erratic or man-made dolmen? It probably wasn't druids.

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.

An abandoned stretch of elevated road in the middle of the Brazilian jungle.

Eccentric concrete mansion and museum designed and built by hand from the inside out.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

This park contains a number of standing stones meant to heal and inspire.

Built by prisoners of war, the largest small-scale model ever built includes eight miles of tiny streams that now sit abandoned.

This two-room shotgun shack in Tupelo is the birthplace of a King.

These lush botanical gardens employ the most purrfect pest control force.

In which a local geological marvel becomes a quaint roadside attraction.

The oldest farmer's market in America is so ancient it was approved by the King of England.

The longest escalator in the Western Hemisphere takes over three minutes to ride down.

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

Meet manatees face-to-face at this zoo for native species.

Welcome to old Florida, where a 1940s mermaid show is still enchanting visitors.

An idyllic swimming pool tells the tale of Hemingway's trouble with women.