Introduction to Wan'an Fort: Wan'an Fort is called "Weizhai" by Songkou people. It is located on the bank of Dazhang River. The fort was built in September of the third year of Xianfeng in the Qing Dynasty (1853), covering an area of more than 2,200 square meters. It was built by the ancestors of the Zhang family and later sold to the Fang family. It is also called "Taiping Fort", which expresses the wishes of the builders and hopes for peace in the world. Wan'an Fort is a civil structure with a high house and deep courtyard, with earthen walls and green tiles. The spatial layout and house structure are reasonable and orderly, and it is grand yet delicate. The outer wall is about ten meters high. The base of the wall is made of giant cobblestones from Dazhang River. It is four to five meters high. Above it is a loess wall compacted with refined soil. It is four to five meters high and more than a foot thick. It is very solid and covered with The sentry (gun) hole, which is wide on the inside and narrow on the outside, has been transformed into a window by the residents.