Cloud is seen above the Tianmen Mountain in Zhangjiajie, central China's Hunan Province, Oct. 8, 2015.
Photo taken on Oct. 8, 2015 shows the scenery of the Tianmen Mountain in Zhangjiajie, central China's Hunan Province.
Photo taken on Oct. 8, 2015 shows the sea of clouds above the Tianmen Mountain in Zhangjiajie, central China's Hunan Province.
Source: Xinhuanet/Shao Ying