Castle in Spain is another miracle of Dunhuang City. In the sunny and hot summer, the mysterious mirage can be found from the distant vastness of Gobi desert. Along each side of the highway from Dunhuang to Yangguan Pass or Jade Gate Pass, visitors can catch sight of the rolling sea, high mountains, orderly buildings, and well-proportioned cities. The scenery is partly hidden and partly visible, and it is of great spectacle.
