This palace (Palace of Supreme Harmony; 1803) is a spacious hall with an ornate timber roof supported by 80 carved and lacquered columns. It was used for the emperor’s official receptions and important ceremonies. On state occasions the emperor sat on his elevated throne, facing visitors entering via the Ngo Mon Gate. No photos are permitted, but be sure to see the impressive audio-visual display, which gives an excellent overview of the entire Citadel, its architecture and the historical context.