Introduction to Zangjun Cave: Now known as "Savage Mansion", it is a large cave on the cliff in the Savage Valley. It is said that Wu Zetian deposed Zhongzong Li Xian as King of Luling and demoted him to Fangling (i.e. Fang County). Xue Gang Raise the flag in Fangling to rebel against the Tang Dynasty and protect Li Xian. Officers and soldiers besieged Fangling. Li Xian, his family and palace personnel ventured into the cave to avoid the officers and soldiers, hence the name "Hiding Army Cave". The cave is 300 meters deep. There is a huge boulder at the entrance and a cliff at the exit. There are many stalactites in the cave, and there are all kinds of strange things. The cave is relatively flat without water.