Student volunteers build models of architecture in various shapes and colors by using cookies in East China's Shanghai municipality on Aug 24, 2016. The construction of the biscuit city lasts from Aug 22 to 28, and then guests will be invited to devour it. Performance artist Song Dong believes that the week long construction and destruction through eating is art, symbolizing the desires of human beings. It's the desire of human beings to construct a city or turn it into ruins. [Photo by Gao Erqiang/Asianewsphoto]