Introduction to Linlu Tower: Linlu Tower is located on the East City at the north corner of Dongluo City. It was built at the same time as Dongluo City. It is a defensive building that protects Shanhaiguan City. After the Qing Dynasty, it was gradually abandoned. In 1985, relevant national departments allocated special funds for restoration. The restored Linlu Tower is located on the rectangular platform. The city platform is 25 meters wide and 10 meters high. The construction area of ​​Linlu Building is 119.52 square meters. It is a five-ridge Xieshan single-eave roof with a double-layer brick and wood structure. There are 20 arrow windows on the east, north and south sides of the building.