Visitors walk inside a tunnel at the Science and Technology Museum in Tianjin municipality, May 19, 2012. State Councilor, Liu Yandong on Saturday opened China's annual "Science and Technology Week" by calling for accelerated scientific progress and the development of new technology, popularization of scientific knowledge and the creation of an environment for innovation. "Science and Technology Week" has been held annually since 2001 and more than 600 million people have participated in its activities. Various activities were organized in parks, schools or museums across the nation to improve the awareness of science and technology. [Photo/Xinhua]

A young couple dressed as characters in the video game, Plants vs. Zombies, walks a red carpet during their wedding ceremony in Qingdao, East China's Shandong province, May 19, 2012. The groom and bride are both fans of Plants vs. Zombies and work in the same company. They became better acquainted by sharing their playing skills after work. A traditional wedding ceremony will also be held when the couple goes back to their hometowns, Qingdao Morning News reported. [Photo/CFP]