Rainbow seen at Hukou Waterfall, N China
A tourist takes photo of a rainbow at the Hukou Waterfall in Linfen, north China's Shanxi Province, Nov. 6, 2014. (Xinhua/Lyu Guiming)
A tourist takes photo of a rainbow at the Hukou Waterfall in Linfen, north China's Shanxi Province, Nov. 6, 2014. (Xinhua/Lyu Guiming)