Photo taken on July 6, 2008 shows Chinese courtyard houses at the man-made sinkage square in the Olympic Forest Park in Beijing, capital of China. The sinkage square is dubbed as "palace under ground", or "the corridor for traditional Chinese arts", which has its seven "exhibition courtyards" like ancient-styled Chinese palace gate, booth, chime, red walls in line, displaying traditional Chinese culture and arts to athletes and visitors from around the world. (Xinhua Photo)

Photo taken on July 6, 2008 shows the ancient-style Chinese memorial arch standing on the north entrance of the man-made sinkage square in the Olympic Forest Park in Beijing, capital of China. The sinkage square is dubbed as "palace under ground", or "the corridor for traditional Chinese arts", which has its seven "exhibition courtyards" like ancient-styled Chinese palace gate, booth, chime, red walls in line, displaying traditional Chinese culture and arts to athletes and visitors from around the world.(Xinhua Photo)

Photo taken on July 6, 2008 shows character symbols of games on glass screen walls at the man-made sinkage square in the Olympic Forest Park in Beijing, capital of China. The sinkage square is dubbed as "palace under ground", or "the corridor for traditional Chinese arts", which has its seven "exhibition courtyards" like ancient-styled Chinese palace gate, booth, chime, red walls in line, displaying traditional Chinese culture and arts to athletes and visitors from around the world. (Xinhua Photo)