This wondrous waterfall rushing down a green-covered mountain wasn't discovered until 2010.

A 9 year-old boy’s elaborate cardboard arcade in his father’s used auto parts store.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

The massive machine creates cracking displays of indoor lightning.

This massive library holds what was once the largest book collection in the world.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A kaleidoscopic warehouse-maze of handmade neon signs.

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

The beautiful baroque library of the Hapsburg empire.

The final resting place for the remains of 143 Habsburg royalty.

A classic American barn that was the home of a classic American television star.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Shop selling 500 flavors of soda has something for everyone.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

To enter this cluttered-yet-cozy sanctum of Belgian brews, ring the bell and tell the gatekeepers you've come “to taste beer.”

This annual Belgian water race attracts bathtub captains from all over the world.

Theme park featuring miniature replicas of European monuments.

A 16th-century horror show built in a lovely Italian garden.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Hidden deep within a Filipino jungle is an incredible waterfall that plunges into a dazzling blue-green pool.

The ruins on a deserted tropical island in the Philippines bear the scars of WWII.

An eatery in a shallow river where diners can enjoy their meal mere feet from the base of an artificial waterfall.

A magically clear, blue river that seems to spring from nowhere.