Danxia Landform in Zhangye City, northwest China's Gansu Province, Danxia is a special landform from reddish sandstone that has been eroded over time into a series of mountains surrounded by curvaceous cliffs and many unusual rock formations. (Xinhua/Shi Youdong)
da:http://www.cadoinpiedi.it/2012/07/16/cina_le_rocce_che_sembrano_dipinte_a_mano_-_foto.html