Tourists visit the new decorations erected on the Tian'anmen Square in central Beijing, capital of China, July 24, 2008. Parterres of the Olympic themes are installed on the square before the opening of the 2008 Beijing Olympic Games on Aug. 8. (Xinhua/Gong Lei)

　　Workers arrange flower pots on a parterre at the Tian'anmen Square in central Beijing, capital of China, July 24, 2008. Parterres of the Olympic themes are installed on the square before the opening of the 2008 Beijing Olympic Games on Aug. 8. (Xinhua/Gong Lei)

　　Workers install two huge Chinese knots on a parterre at the Tian'anmen Square in central Beijing, capital of China, July 24, 2008. Parterres of the Olympic themes are installed on the square before the opening of the 2008 Beijing Olympic Games on Aug. 8. (Xinhua/Gong Lei)