Tubing through a cave lit with glowworms is a magical underground experience.

These 20-foot jaw bones honor a time when the leviathan bones were a sign that whalers survived the hunt.

The gloomy ruins that inspired Bram Stoker to bring Dracula to life.

An exotic wildlife habitat right off The Strip.

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.

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

A museum dedicated to the history of a terrifying secret police is now held in their former headquarters.

The celebrated eyesore created by starry-eyed sweethearts.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

Pyramid shaped monument with a tall tale attached.

Created as a punny statement about genetic engineering this monstrous hybrid statue has become a beloved icon.

WWII artifacts, including the building itself.

The modern birthplace of Irish freedom.

The former Nazi Germany concentration camp stands as a museum to remember this dark chapter in European history.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A trail of iron footwear stands as a monument to the thousands executed along this riverbank during WWII.

Museum dedicated to the terror regimes of Hungary.

A statue in Budapest's Liberty Square honors the former U.S. president's efforts to end the Cold War.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

This massive Brazilian church is built like an angular, technicolor pyramid left by Mayans from the future.

A Hungarian pharmacy museum with a box full of mummy powder.

The mummified right fist of a 1,000-year-old saint-king sits inside an ornate golden reliquary.

Where Agatha Christie mysteriously disappeared in 1926.