See the Berlin most tourists don't get the chance to see on this action-packed guided tour of Berlin. Explore the hidden courtyards of Mitte. Head up the hill to Prenzlauer Berg, once a pioneering hipster neighborhood and today a zone occupied by up-and-coming artistic couples with children. Then head over to Friedrichshain, an area 'behind the Wall' before 1989 and that flourished in the 1990s with a Bohemian spirit. Then cross the river over to ethnically diverse Kreuzberg, today a swath of the city made up of artists and Turkish immigrants.