A celebration was held in Luwan Gymnasium in Shanghai on Tuesday night, April 29, 2008, marking the 100-day countdown of the 29th Olympic Games.  Shanghai will host the Olympic torch relay next month and 12 soccer matches in August.(Xinhua Photo)

Dancers perform during a celebration held in Shanghai's Luwan Gymnasium on Tuesday night, April 29, 2008, marking the 100-day countdown of the 29th Olympic Games.(Xinhua Photo)