Mianzhu city in 2008 (R) and 2011 (L). Mianzhu is a county-level city in southwest China's Sichuan Province. The city was heavily damaged during the 2008 Sichuan earthquake. To help it recover as soon as possible, Jiangsu Province in east China paired up with Mianzhu to provide it with neccessary aid. [Photo by Chen Xiangzhao]