BERLIN - NOVEMBER 09: German Chancellor Angela Merkel (R) talks to songwriter Wolf Biermann (R) as she visits the suburban railway station at Bornholmer Strasse on the 20th anniversary of the fall of the Berlin Wall on November 9, 2009 in Berlin, Germany. The leaders visited the bridge and the train station below because it was there that in 1989 that guards opened the first border crossing and allowed East Berliners to walk unimpeded into West Berlin. The city of Berlin is celebrating the 20th anniversary of the fall of the Wall, which led to the end of communist rule in East Germany and later on the reunification of East and West Germany, with a spectacular event at the Brandenburg Gate and the participation of international leaders.