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Aerial photo taken on Oct. 21, 2018 shows a view of Danxia landform at Wangjiawan of Pingqiao Town in Ansai District of Yan'an, northwest China's Shaanxi Province. (Xinhua/Tao Ming)
Aerial photo taken on Oct. 21, 2018 shows a view of Danxia landform at Wangjiawan of Pingqiao Town in Ansai District of Yan'an, northwest China's Shaanxi Province. (Xinhua/Tao Ming)