BEIJING - AUGUST 06:  A Chinese worker sits on the scaffold outside the National Aquatic Center, known as Water Cube on August 6, 2009 in Beijing, China. The Olympic Green has already become the most popular scenic spot of Beijing in the past year. China will hold various activities to mark one year anniversary of the Beijing Olympic Games. Getty Images logo Getty Images 4 months ago

BEIJING - AUGUST 06: A Chinese worker sits on the scaffold outside the National Aquatic Center, known as Water Cube on August 6, 2009 in Beijing, China. The Olympic Green has already become the most popular scenic spot of Beijing in the past year. China will hold various activities to mark one year anniversary of the Beijing Olympic Games.