A remarkable two-country morph, this town is part of Germany legally but is by all other measures Swiss.

An extraordinary mechanical calculator designed by the mathematician and philosopher Gottfried Leibniz.

Dine at a legendary after-hours joint frequented by David Bowie and Iggy Pop.

A famed artist's inspiring work of peace and tolerance.

A unique bridge with an equally unique view.

This medieval cathedral houses stained-glass windows featuring saints and pretzels.

Dedicated to the European Sinti and Roma peoples murdered during the Holocaust.

The Suurhusen church tower in Germany leans over farther than the famous Leaning Tower of Pisa.

A tiny basalt mountain with an observation tower overlooking the beautiful Bavarian countryside.

This massive statue is the personification of Bavaria and the first colossal statue of the modern period composed of bronze.

This tremendous timepiece was once the largest cuckoo clock in the world.

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

These beautiful objects represent beautiful ideas.

A steam powered train that runs on city streets.

The telescope that discovered Neptune.

Take a walk in a recreation of ancient Rome.

Böttcherstraße's bells, extolling Nordic virtues and the great conquerors of the world.

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

Now overgrown, these anti-tank barriers from World War II are sometimes called "dragon's teeth."

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

Carved fountains poignantly placed in parks and in front of special monuments.

The prison where Hitler wrote "Mein Kampf," and 278 Nazis were later executed for war crimes.

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

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