You can browse the exhibits at Einstein Tower, a museum with a story of its own, during your trip to Potsdam. While you're in the area, wander around the gardens.

With its stark, 1960s layout, “Alex” is a showcase of Communist-era architecture and a lively central meeting place for locals.

This symbol of German unification ranks alongside Paris' Arc de Triomphe as one of Europe’s most iconic and emotive monuments.

Often described as “Berlin’s Champs-Élysées,” this elegant promenade is the city’s premier shopping strip and is punctuated with a moving war memorial.

Say “guten tag” to some of the world’s most exotic creatures in one of Europe’s most comprehensive and elegant zoos.

Berliners come to celebrate their city in this public square, which was leveled during World War II and isolated in the Cold War.