Almost 80 years ago, a Westerner, his name is Ph. Eberhard who wrote:"Hue is an attractive tourist center where has Royal Citadel and mausoleums, an attractive and special attention for visitors and artists. Only mausoleums of Nguyen emperors is valuable enough for tour", according to general opinion: mausoleums in Hue is more beautiful than mausoleums of Minh dynasty in China.
Most of the mausoleums were built when the kings were on the throne. Most of manpower, material and capability of the king were poured out for many years to implement. Artistic idea was given by the king, architectural blueprint was approved by the king and the king went supervision by himself . The thing that architects of Nguyen Dynasty must be comply, it is the principle of feng shui. Any mausoleum also must according the correct those rule related to the entity geographical natural: mountains, rivers, lakes, steams and especially " huyen palace" is in the center.
