Pedestrians walk past a domino piece painted with a pigeon in Berlin, Germany, Nov. 7, 2009. A row of giant dominos with bright color is placed along the original route of the former Berlin Wall in front of the Brandenburg Gate to the Potsdamer Platz. The row of 1000 dominos standing 1.5-km long with the height of 2.5 metres will be toppled on Nov. 9 as a symbolic tribute to the collapse of the Wall 20 years earlier. [Luo Huanhuan/Xinhua]