Not many people have noticed a special thing in this winter in Hue: For the first time ever, in the rainfall updates of the Provincial Commanding Committee for Disaster Prevention and Search & Rescue appears a very strange place, which is Quan Tuong Dai (the Imperial Observatory) in Hue Imperial City. The three words “Quan Tuong Dai” being read out on a rainy day sounds melancholy as if old friends saw each other once again after such a long time.