The mysterious fairyland of Qilisanggan Lake, a tributary of the magic realm, has been eroded for a long time, forming a strange landscape that looks like an ancient castle rather than an ancient castle, a sculpture rather than a sculpture. Tulin, located in Duzhuang Township, Datong County, consists of hundreds of soil pillars and walls tens to more than ten meters high. It is called Shibangou by local people. Under different illuminations, they show wonderful changes: sometimes they shine with gold, sometimes they are red like fire, sometimes they are abyss, sometimes they are white like frost fields. Like Yuanmou in Yunnan and Alizada in Tibet, precious geological relics and magical workmanship show the desolate and solemn beauty of the Loess Plateau.