This temple to the sturm and drang of Richard Wagner contains a dragon's cave and reptile zoo full of living "dragons."

These 18th century gardens tell a rocky story of the son of Odysseus.

The small alleys in Lübeck's Old Town are a result of medieval urban sprawl.

The 3,600-year-old archeological sensation is considered to be the oldest representation of the cosmos.

This natural "sea of stones" was once used by the Romans as a quarry.

Beloved children's TV characters freckle the German city's streets.

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

This 17th-century "unicorn" was cobbled together from the skull of a rhinoceros, the legs of a mammoth, and the horn of a narwhal.

The architect of this fanciful complex called it an "oasis for humanity and nature in a sea of rational houses."

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

An ornate sculpture of an ox in repose marks the former entrance to Nuremberg's medieval meat market, which was destroyed during World War II.

Somber memorial to the May 10, 1933, book-burning which took place on this spot.

World's only telecommunication tower with a wooden pinnacle.

A sublime medieval path adorns the marble floor of one of the most beautiful Gothic cathedrals in France.

A dad joke was inevitable when a member of this 19th-century chocolatier family married the president of France.

A quaint Russian village in the middle of a German metropolis.

An 18-panel Soviet mosaic showcasing the scientific advances made under socialism.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

Oberweissbacher Bergbahn - a broad-gauged cable car capable transfering railcars.

The largest brick bridge in the world.

One of Jeff Koons’s largest sculptures and his first commemorative work.

This little train station is forever immortalized in film history.