This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

This historic stone bridge has an entire neighborhood clinging to its sides.

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

This unique medieval artwork featuring the story of the Antichrist remained lost for decades.

An abstract and eyecatching clock/fountain is the centerpiece of this little-known German city.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

Science fiction's grandfather has a fittingly marvelous tomb.

In the center of Wrocław's old meat market stands a somber tribute to the city's livestock.

A collection of old neon signs from all over Poland line a secluded courtyard.

This ex-prison dates back to the Middle Ages.

The silly symbol for an underground protest group is now scattered around the city.

A striking public sculpture representing the period of martial law in Communist Poland.

Relive a Polish uprising via an enormous, century-old cyclorama.

This oddly beautiful water cistern is a techno-temple to the wet stuff and a multimedia masterpiece.

A 90-ton, gravity-defiant steam locomotive shoots for the skies in this bizarrely beautiful public artwork.

A fairytale Gothic castle steeped in Nazi treasure conspiracy theories.

Europe's largest natural bridge has a 19th century royal chateau built into its side.

This bakery and museum offers tours of the tastes and mythology of Aachen's signature spice biscuit—just don't ask for the recipe.

The birthplace of Karl Marx is now a museum dedicated to the communist revolutionary's life and work.

A city's controversial tribute to its founder depicts townspeople flashing their bare behinds.

Seventeen members of the local royal family are interred in this Baroque church in northern Germany.

Germany's last remaining Lenin statue has become a lightning rod of debate about the country's divided past.

An ornate century-old elevator still connects the two halves of Bad Schandau.

A small man-controlled waterfall powers an Art Nouveau elevator and is accessed via narrow gauge, solar-powered tramway.