truong du pavilion and lake

and architecture asia asian brown building buildings bush bushes capital chinese citadel city column columns dien du east eastern exterior external famous formal garden gardens green grounds heritage historic hue imperial lake lakes landmark landmarks lantern lanterns nam old oriental ornamental outdoor outside palace palaces pavilion pavilions plant plants pond ponds residence rockeries rockery site south structure structures style thienhue tho thua tourism travel tree trees troung truong unesco viet vietnam water wood wooden world yellow