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Photo taken on March 26, 2019 shows karst landscape inside the Furong Cave in Wulong District of Chongqing, southwest China. The Wulong Furong Cave was listed as a UNESCO world natural heritage site in 2007. (Xinhua/Liu Chan)
Photo taken on March 26, 2019 shows karst landscape inside the Furong Cave in Wulong District of Chongqing, southwest China. The Wulong Furong Cave was listed as a UNESCO world natural heritage site in 2007. (Xinhua/Liu Chan)