Visitors walk past facial sculptures in the Africa Joint Pavilion at the Expo Park in Shanghai, Aug 16, 2010. [Photo/Xinhua]

Kids pose for photos in front of facial sculptures in the Africa Joint Pavilion at the Expo Park in Shanghai, Aug 16, 2010. [Photo/Xinhua]

A tourist poses before a facial sculpture in the Africa Joint Pavilion at the Shanghai Expo Park, Aug 16, 2010. [Photo/Xinhua]