Introduction to Guangyu Hall: The main hall of the old headquarters site is Guangyu Hall. It was originally a place where people surnamed Li gathered to discuss matters. Later it became the first detachment of the New Fourth Army and the headquarters of Jiangnan Command, where large-scale meetings and conferences were held. A place for military and civilian gatherings. The famous decisions in history such as heading eastward and heading north were made here. The 2006 TV series "Walk to the South" filmed in Liyang was also filmed here.