Shanhaiguan, also known as Guan Yu, Guan Yu and Lu Linguan, is located atNo. 1 East Street, Shanhaiguan District, Qinhuangdao City, Hebei Province. It is one of the northeast passes of the Great Wall in Ming Dynasty. Before 1990, it was considered as the starting point of the eastern end of the Great Wall of Ming Dynasty, and it was known as one of the "three wonders" of the Great Wall of China (starting from Shanhaiguan in the east, with Beitai in the middle and Jiayuguan in the west).