double-ring-d longevity pavilion

1741 1975 50th among ancient anicient architectural architecture art auspiciousness beijing birthday blue building built celebrate china chinese composed double dowager eave elegant emperor empress front glazed gracious harmony here hongli linked located longevity look malachite masterpiece meaning middle mother originally outdoor pair park pavilion pavilions peaches photo plane qianlong ring roof round seas shape shaped south stairways strict structure structures style symbolically symbolizes tiantan tips transferred unique