The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

This museum collects over a century of automobile history including the iconic car from The Muppet Movie.

One man's vision and a labor of love of many.

This stunning gothic ruin was a casualty of the Indiana steel industry crash.

This modern castle sat empty for decades before a fire inspired its builders to complete its luxury halls.

This "floating railway" is one of the world's oldest monorail systems.

The longest navigable underground river in the United States is home to countless blind and albino animals.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

A mysterious ruin shrouded in more folklore than fact.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

A long, winding trek rewards you with a gorge so captivating it inspired a painting in the Tate.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

This abandoned Brutalist treehouse is a hidden architectural relic.

The world's largest rotating world.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

The eccentric mansion of one of the most popular horror authors of modern times.

Explore the dark underground corridors of this graffiti-covered former military fortification.

A galaxy of glowworms—larvae of a gnat—hides deep in the belly of these caves.

The atmospheric road was never meant to be so creepy.

One of the last doorless, continuously moving elevators still in use in the U.K.

This tiny business claims to be "the smallest pub on the planet."

A wacky, UFO-shaped house in a suburban neighborhood.