Wowereit Steps Down, Mueller Becomes New Mayor Of Berlin

BERLIN, GERMANY - DECEMBER 11: Michael Mueller, designated mayor of the city of Berlin (SPD) (L) is sworn into office by Ralf Wieland, president of the Berlin state parliament (Praesident des Abgeordnetenhauses) (SPD), during a plenary session of the Berlin state parliament or Landtag of Berlin, in the Abgeordnetenhaus, or the city-state's parliament building, on December 11, 2014 in Berlin, Germany. Mueller, Berlin's development senator, will be the capital's next mayor, taking over from incumbent Klaus Wowereit, who had announced his resignation in August after the city failed to finish building its new airport even years after its scheduled opening. While outgoing Wowereit, who ran the city for over 13 years, was seen as a driving force behind the city's perceived party-oriented culture, famous for describing the capital as 'poor but sexy,' Mueller is seen as being more pragmatic. (Photo by Adam Berry/Getty Images)