A delightful but little-known public observatory and planetarium in Munich.

These jeweled relics have a scandalous and contested past.

A typical crusty old museum this isn't.

One of the most well-known city festivals in the world.

Nestled on the banks of a river in Nuremberg is a small museum that was once home of the city's official executioner.

This historic toy museum brings a little whimsy to a city not usually remembered for such things.

A Neolithic burial site erected around 3000 BC.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

These beautiful objects represent beautiful ideas.

This peculiar museum offers hands-on interaction with seemingly intangible principles of mathematics.

Dancing skeletal figures pay homage to a medieval mural destroyed during World War II.

Tiny castle in the middle of the Rhine made you pay to pass.

A varied collection of brains in alcohol.

The name doubles as an appropriate adjective for this small ossuary.

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

A modern museum dedicated to the fairytales and dictionary work of the Brothers Grimm.

A series of haunting wooden totems are hidden in the woods surrounding a German environmental center.

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

The castle where Martin Luther secretly translated the New Testament from Greek to German while in hiding.

This strange building looks like a medieval fortress crashed into a 1960s Brutalist office block.

This extremely narrow tenement boasts a maximum occupancy of just two.

The real life town from the Pied Piper of Hamelin has a mechanical puppet show that retells the famous story many times a day.

Constantly maintained, this organ is playing a six-century long composition by John Cage.

Four-story slides send people whizzing through the math department at this Munich university.