Girls of Miao ethnic group dance at the opening ceremony of the Miao Sisters Festival in Taijiang county, Miao-Dong autonomous prefecture of Qiandongnan, Southwest China's Guizhou province, April 20, 2016. The Miao Sisters Festival, regarded as the ethnic Miao's folk Valentine's Day, is held annually around the 15th day of the third lunar month according to the lunar calendar in China. [Xinhua/Tao Liang]