Visitors take photos of the dynamic version of the famous Chinese picture "Riverside Scene at Qingming Festival" at the China Pavilion in the World Expo park in Shanghai, east China, May 2, 2010. The dynamic version of "Riverside Scene at Qingming Festival" is 130 meters long and 6.3 meters high, 30 times of its original. Designed by modern multimedia technics, the dynamic picture varies with change of lights and movements of figures. [Xinhua]