These barriers stand as stark reminders of Northern Ireland's troubled past.

Every year locals give the bear a fresh coat of paint to preserve its signature goofy grin.

This gnarled old tree supposedly sprouted from seeds kept in the pocket of a 16th-century Spanish sailor.

This Italian-style temple replica has been threatening to fall off the Irish coast for hundreds of years.

A meandering boardwalk across the bogland leads to a "stairway to heaven" with sublime views.

A museum marks and documents the site of the Titanic's launch.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

This massive subterranean fissure is known as the "underground Grand Canyon."

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

This one-time health resort was used by aristocrats around the world.

A miniature train-ride through Slovenia's largest cave system.

Martin Bricelj Baraga's monolithic sculpture measures the blueness of the sky, and changes color to match it.

This abandoned Slovenian military barracks has become a punky-political art squat.

A whimsical bridge adorned with decorative dragons.

The "dragon babies" of southeastern Europe.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

The walls of this medieval church are covered with perfectly preserved frescos, including a pristine example of the Dance of Death.

The atmospheric road was never meant to be so creepy.

This short bridge is the only thing connecting a tiny Irish island to the mainland.

Northern Ireland's Brobdingnagian stepping stones.

Building owners can take out tiles for free at this repository for historic building materials.

This 500-year-old Tudor home is a treasure trove of history and mystery.

A Neolithic burial tomb connected with a colorful array of legends.

Where, exactly, the great aviator completed her transatlantic flight has caused some trouble in Wales.