An aerial view of a salt lake in Yuncheng City, North China's Shanxi province. As temperatures drop, different colors start to appear on the surface of the ancient lake, making it a spectacular scene of colors. Covering an area of 132 square meters, the lake is one of three inland salt lakes with sodium sulfate in the world. The amount of salt it contains is similar to that of the Dead Sea and allows humans to float on it. According to geologists, the lake was formed about 50 million years ago. (Photo/VCG)
