Located between Montenegro and Qilian Mountain, Jiayuguan has been the traffic fortress since ancient times. The outer city and the inner city are magnificent. It is worthy of being the world's first Xiongguan. Standing on the upper floor of the city, remembering the wisdom and hardships of the predecessors. You can still feel the scene of the blood and sand field of the soldiers and horses. The history of the ancient Xiongguan maniacal killing and fighting in Gobi, which is endlessly far-flung, is the sadness of the unprovoked people who go out of Yangguan in the west.