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

The sweet story of how American cargo planes became known as "Candy Bombers" during the Berlin Blockade.

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

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

The oldest Jewish cemetery in Europe survived Hitler's Germany.

Model Trains and Much More in Hamburg.

This 600-year-old home seems to defy physics.

In this German city center, the streets have no names.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

The telescope that discovered Neptune.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

The prototype for all Nazi concentration camps.

There has been an astronomical clock on this spot since the 14th century.

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

A meteorite-bounded town in Bavaria.

Its collection commemorates the author of the iconic children's book "Heidi."

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

A Black Forest cuckoo clock theme park features one timepiece big enough to walk inside.

This old wooden funicular railway leads to a cemetery in the forest.

Explore the five senses depicted on this protruding Gothic window.

Built to test magnetically levitated elevators, the tower also boasts Germany's highest visitor platform.

This is not only one of the oldest collections in Europe, but also possibly the most beautiful.

The atomic museum in the basement of this German castle displays long strands of replica uranium cubes.