S China Karst extension, Tomb of Zhang Qian listed as UNESCO World Heritage (4/10)

Photo taken on April 9, 2013 shows the scenery of stalactites inside the Reed Flute Cave in Guilin, south China's Guangxi Zhuang Autonomous Region. The World Heritage Committee on Monday inscribed an extension of South China Karst, a natural World Heritage Site since 2007, into the UNESCO's World Heritage List. (Xinhua/Lu Bo'an)