Photo taken on Dec. 27, 2016 shows a rainbow over the Hukou Waterfalls on the Yellow River in Linfen, north China's Shanxi Province. (Xinhua/Lyu Guiming)
Photo taken on Dec. 27, 2016 shows a rainbow over the Hukou Waterfalls on the Yellow River in Linfen, north China's Shanxi Province. (Xinhua/Lyu Guiming)
Tourists view a rainbow over the Hukou Waterfalls on the Yellow River in Linfen, north China's Shanxi Province, Dec. 27, 2016. (Xinhua/Lyu Guiming)
Photo taken on Dec. 27, 2016 shows a rainbow over the Hukou Waterfalls on the Yellow River in Linfen, north China's Shanxi Province. (Xinhua/Lyu Guiming)
Tourists view a rainbow over the Hukou Waterfalls on the Yellow River in Linfen, north China's Shanxi Province, Dec. 27, 2016. (Xinhua/Lyu Guiming)
