Introduction to the old site at a glance: Due to the long-term lack of protection and the serious phenomenon of random construction, the walls of the old headquarters site were cracked and five houses were in danger. Especially after the heavy rain in 2007, water accumulated inside the old site and the damage was serious. In order to better protect the historical heritage, the Hongyan Link Site Protection Office demolished the dilapidated buildings and restored the old site on its original site. The restoration area reached more than 1,400 square meters, giving the old site a new look.