Berlin Highlights and Hidden Sites Historical Walking Tour. Get an insider’s look at Berlin, the capital and cultural centerpiece of Germany, on this guided, 4-hour walking tour. Visit some of Berlin’s most popular attractions — like the Berlin Wall Memorial, Brandenburg Gate and Checkpoint Charlie — as well as a few lesser-known locations that many group sightseeing tours miss. Learn about the history of Berlin, from the time of the Teutonic Knights to its role as capital of the Nazi Third Reich, to the divided city of the Cold War, to the modern-day capital of a unified Germany. Book and Save 32%! Berlin Highlights and Hidden Sites Historical Walking Tour.