盛世长安万国来朝图

开元盛世长安城俯瞰，唐玄宗杨贵妃含元殿远眺，万国来朝繁华

Aerial view of Chang'an City during the Kaiyuan Era golden age, Emperor Xuanzong of Tang and Yang Guifei gazing into the distance from Hanyuan Hall, the prosperity of myriad nations coming to pay tribute