Aerial photo taken on June 8, 2017 shows the junction of Lingqu Canal (L, bottom), Rongjiang River (R, bottom) and Lijiang River (L, up) in Xing'an County, south China's Guangxi Zhuang Autonomous Region. Lingqu Canal is one of the oldest and well-preserved ancient water conservation projects in the world. (Xinhua/Lu Bo'an)
