Introduction to the beacon tower: The Jinshanling Great Wall beacon tower is majestic and tall. It is dotted with fortresses and towers, with a total of 158 towers. These towers have different forms. The piers are square, flat, round, etc. The roofs have shapes such as boat awnings, domes, four-corner and octagonal sky-piercings. In addition, there are observation towers with few holes, and warehouse buildings that are rare along the Great Wall. wait.