Once the home of a hermetic monk, this cave now houses a small church.

German and American troops joined forces to defend this fortress during the strangest battle of World War II.

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Macabre museum devoted to historical Viennese murders.

A spherical "micro-nation" in the heart of Vienna.

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

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

The "feral child" who appeared in Bavaria in the 19th century remains as much a mystery as his unsolved murder.

This strategic isle was once swapped between empires and almost entirely destroyed in a bomb explosion.

In this brilliant blue spring in Germany, legend has it that a sad mermaid learned to finally laugh.

Walk inside a half mile long crevice right outside the town of Garmisch Partenkirchen.

A meteorite-bounded town in Bavaria.

A tiny chapel clings to a precipice above Germany’s gemstone capital.

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

Ample proof that watery ends make for well-preserved, millenia-old mummies.

A strange rock formation with numerous legends trying to explain it.

The footprint of a frustrated devil in Munich's Cathedral.

A unique hanging cable-car navigates through Dresden, the oldest suspension railway in the world.

Explore the complex ecology of this multifaceted nature preserve by riverboat.

Once the tallest building in the world, this abandoned church is now a monument to the destruction of WWII.

Slaughterhouse Five opens its dank doors to fans of Kurt Vonnegut.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

The prototype for all Nazi concentration camps.