An extravagant western hotel where every floor is the "ground floor."

This former abandoned hospital, a complex of stunning 19th century buildings, once housed 2,000 psychiatric patients.

Just a few miles off the western coast of Ireland lies an isle steeped in Irish literary history.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

A church filled with the bones of hundreds of virgins martyrs—or so they say.

These fantastically named natural pools look like something out of a Scottish myth.

Odd outsider art installations surround a Gold Rush-era ghost town.

The site of the climactic scene from the classic horror film is now a historic landmark.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Legends of time travel and magical woodland creatures bolster the natural charm of this verdant sanctuary in the midst of Moscow.

The remains of a magnificent medieval fortress that was the capital of a vast empire.

One of the most remote spots in America and the first protected wilderness area in Nevada, named after an old legend.

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

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

Peek through the gates at this oasis from the city, full of Old English charm.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

A modern English garden of eccentric beasts, follies, and oddities.

A Buddhist temple to honor insects that died for science.

A small island abbey is the final resting place of many medieval Scottish monarchs, including the real Macbeth.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

Rock-cut caves and 7,000 Buddhist sculptures carved into the nearly sheer face of a sandstone mountain.

Five acres of divinely inspired folk art.