Erzhiwan is located in the East Royal Court in the imperial residence, which is a beautiful courtyard. It is the most abundant vegetation area in Imperial residence. Cherry blossoms and peony are appreciated here in spring, calamus flowers in summer, red leaves in autumn and camellia flowers in winter. Every season has different scenery. And for the citizens, it is a free and open inner garden of imperial residence, just like ordinary parks, it can be visited at any time.