Photo taken on May 19, 2017 shows the scenery of the Huoshizhai National Geopark in Northwest China's Ningxia Hui autonomous region. The geopark is famous for its unique "Danxia" landform. Danxia, which means "rosy cloud", is a kind of special landform formed from reddish sandstone that has been eroded over time into a series of mountains surrounded by curvaceous cliffs and many unusual rock formations. [Photo/Xinhua]