All that's left of the quintessential "cabin in the woods."

This odd Chilean waterfall-cano hotel must be entered via a rope bridge.

Venice's "Island of the Mad."

Rome's semi-secret peephole vista is also a former Crusader stronghold.

A popular swimming hole that hides one of America's most deadly diving spots.

A modern day curiosity cabinet.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

This 700-year-old street food market features baby octopus and soy donuts.

1,001 carved statues of the Buddhist God of Mercy, each with a unique face.

A modern mechanical planetary system, part of a 10,000 year clock.

Abandoned bridge hidden deep in the San Gabriel Mountains.

See massive fossils that are over 200 million years old in northeastern Arizona.

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

These eerie outliers of the lightning bug family glow a mysterious blue color.

The sci-fi villain is a little-known inhabitant of the U.S. capital's largest cathedral.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The hallucinogenic center of the ancient world.

This castle was established by the 4th Duke of Montrose and is connected to the Buchanan Clan.

Surreal riveted sea forts once protected the Kent shores from German attack.

This serene oasis in an affluent Los Angeles neighborhood holds some of Gandhi's ashes and got Elvis into Eastern Philosophy.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The ancient tomb acts as a calendar that keeps perfect time.

A collection of abandoned typographic signs from Berlin and beyond.