Photo taken on Oct. 29, 2018 shows the exterior scenery of Wanxiang karst cave in Hanwang Township, Longnan City, northwest China's Gansu Province. (Xinhua/Fan Peishen)
Scenery of Wanxiang karst cave in China's Gansu
Source: Xinhua| 2018-10-30 16:44:48|Editor: Yamei
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