Photo taken on Jan. 23, 2010 shows the colorful sand forest in Luliang County, southwest China's Yunnan Province. Luliang County has a colorful sand forest, which covers an area of 25 square kilometers. The colors of the sand forest change with the seasons, under changing climatic conditions and from different angles. The colors also vary according to sunlight and moonlight exposure. [Xinhua]

Photo taken on Jan. 23, 2010 shows the colorful sand forest in Luliang County, southwest China's Yunnan Province. Luliang County has a colorful sand forest, which covers an area of 25 square kilometers. [Xinhua]

Photo taken on Jan. 23, 2010 shows the colorful sand forest in Luliang County, southwest China's Yunnan Province. [Xinhua]