Former Polish President Lech Walesa pushes the first of the individually painted dominos along the former route of the wall in front of the Reichstag in Berlin as part of the celebrations of the 20th anniversary of the fall of the Berlin Wall on November 9, 1989. Some 1,000 giant dominos, many of them decorated by schoolchildren, will be toppled during the official ceremony wall at Bernauer Str memorial in Berlin on November 9, 2009, the day of the commemoration of the 20th anniversary of the fall of the wall.BERLIN - GERMANY 09/11/2009.