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

Northern Ireland's Brobdingnagian stepping stones.

Op-art architecture designed for happiness.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Mexico's astounding mummy museum with "the world's smallest mummy."

Baroque celebration of the end of the Great Plague of Vienna.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

A wall of chewing gum moonlights as collective art.

Make your reservation to have coffee with some kitties.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Go surfing on this urban wave, "hacked" by local surfers.

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A multimedia experience that chronicles the atrocities of racism.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

Resting place of Hollywood's immortals is also site of summer film screenings.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.

The legendary building that needed ghostly approval before being built.