These picturesque Hawaiian falls are home to a rare species of fish that uses a special sucker to climb up cliffs.

A unique geological area spiked with wind-carved rocks that resemble teepees.

Famous for its bio-luminescent inhabitants, known as "dismalites."

A rare surviving Victorian greenhouse designed specifically to house giant water lilies.

The largest whale museum in Europe allows visitors to walk among life-size giants.

This modern labyrinth lies in the shadow of a ruined medieval castle.

Performers, intricate sets, and a real speakeasy tell the story of the 18th Amendment.

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

Britain's only herd of free-ranging reindeer.

The ruined remains of a coal mining ghost town are hidden within the woods.

A train ride to the middle of nowhere gives its passengers some of the most iconic views of Japan's seasons.

A sign at the end of the Santa Monica Pier marks the traditional end of the legendary American highway.

This sprawling scenic burial ground is the final resting place of Japan's last shogun.

Tucked away on an empty wooded lot in suburban Oklahoma City lie the remnants of an abandoned circus camp.

An architect transformed this abandoned cement factory into his castle-like workshop.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

A subterranean world of tunnels links several buildings of this rare 19th-century asylum.

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

This Scottish bridge seems to compel dogs to leap to their death.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

Sacked by Vikings, blessed by William the Conqueror, dealt a fatal blow during the French Revolution—these ruins have seen it all.

A scattered trail of street art adds a pop of color to the city's stark structures.