National flags of China and Britain are seen in front of the UK pavilion in the World Expo Park in Shanghai, east China, April 23, 2010. Britain has set up in the Shanghai Expo a "Crystal Palace" -- a dazzling cube formed by more than 60,000 slim and transparent acrylic rods containing seeds of different plants that were collected in a bio-diversity project.The pavilion, nicknamed "dandelion" by the Chinese public, intends to convey the idea of "Building on the past, Shaping our future." [Xinhua]

Visitors queue to enter the Japan Pavilion in the World Expo Park in Shanghai, east China, April 24, 2010. The structure nicknamed "pod" combines traditional Japanese knowledge for living in harmony with the environment with the latest environmental control and materials technology. [Xinhua]