imperial city old castle in hue vietnam

ancient architectural architecture asia asian blue building buildings built castle central chinese citadel city complex court cultural culture dai decoration design destinations east emperor empire entrance famous flag forbidden fort garden gate gates heritage hien historic historical history hoang hoi hue imperial king lake landmark magnificent majestic minh monument monuments museum nhon noi palace pattern pavillion power restore river roof ruins sky southeast symbol symbols temples thanh tourism tower traditional travel vien vietnam vietnamese vintage wall walled wealth