In the Three Kingdoms Cultural Exhibition Hall, it is worth a visit to understand the history of the Three Kingdoms. The three Kingdoms are Dingli, which refers to Wei, Yuan, Wu Sanguo. AD 220-265, Cao Yu, Cao Wei (Dingdu Luoyang); AD 221-263, Liu Bei, Yuan Han (Dingdu Chengdu); AD 229-280, Sun Quan, Sun Wu (Dingdu Jianye, Today Nanjing)