Qinhuangdao Shanhaiguan world first day. The first Guanjian Building in the world, also known as the East Building of Zhendong Building, Jiujixie Peak, traditional brick and wooden structure, was built in Minghongwu 14 years (1381). In 1961, it was announced by the State Council as the first batch of cultural relics protection units. It forms the "Wuhu Zhendong" style with Jingbian Building, Muying Building, Linyi Building and Weiyuantang on the north and south sides, fully reflecting the strategic position and majestic momentum of "one husband is in the customs, and the whole family is not open."