The main hall is a traditional Chinese-style hall. At the top of the hall, there is a board on which the four Chinese characters "天下為公" ("What is under heaven is for all") was written by Dr Sun Yat-sen. Behind the main hall there is a corridor which connects it to the second hall. On the west of the corridor stands the auditorium, which was built on the ruins of the "Warm Pavilion". Heavenly King's Throne Room is located on the east side of the corridor.