BERLIN, GERMANY - NOVEMBER 9:  Audience members stand in front  of fiber Berlin Wall falling during a performance along the former border in front of the Brandenburg Gate November 9, 2009 in Berlin, Germany. The city of Berlin is celebrating the 20th anniversary of the fall of the Berlin Wall, which led to reunification of East and West Germany, with a spectacular event at the Brandenburg Gate and the participation of international leaders. Getty Images logo Getty Images 1 week ago

BERLIN, GERMANY - NOVEMBER 9: Audience members stand in front of fiber Berlin Wall falling during a performance along the former border in front of the Brandenburg Gate November 9, 2009 in Berlin, Germany. The city of Berlin is celebrating the 20th anniversary of the fall of the Berlin Wall, which led to reunification of East and West Germany, with a spectacular event at the Brandenburg Gate and the participation of international leaders.