Traditional 11th-century outdoor tannery.

Christ's blood preserved in a Belgian town.

A beer pipeline runs beneath Bruges.

When a medieval fire claimed the original St. Stephen’s Cathedral, it sparked a pattern of unquenchable organ building.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Ugly 18th-century dwarf statues living in a perfectly landscaped Austrian garden.

The world's oldest known salt mine.

An Austrian house of bones filled with hundreds of intricately painted skulls.

Hidden behind musical flora and forgotten for over a thousand years, this cave is now a neon dream.

A humid oasis combines recreation with exploration in a unique underwater cavern.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

What was once a presidential estate is now an exotic menagerie and home to the Budweiser Clydesdales.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

A chessmaster's dream destination.

Less a museum than a bizarre fantasy world created by artists and engineers.

Macabre astrological automaton clock dating to the late 1400s.

The fairy tale castle of the "fairy-tale king."

A moving memorial to the fallen and missing from WWI trenches.

A natural arch offers panoramic views of Yangshuo's karst hills.