Jiao Tai Dian

Jiao Tai Dian was bulit in 1420 and rebuilt in the Qing emperor Jia Qing's reign. On the lunar new year's days and the empresse's birthdays, the empress would come here to receive congratulations.It became the place for storing seals in 1748 when the emperor QianLong decided to keep here 25 royal seals symbolizing the imperial power.

Palace of Heavenly Purity

Constructed in 1420 and reconstructed ,the palace was the place where the emperor lived and handled state affairs during the Ming dynasty and the Qing emperor kangxi's reign.It became the place for holding great ceremonies and granting audiences to all sorts of officials as well as foreign envoys after the Qing emperor Yongzheng ascended the throne and moved his residence to Yang Xin Dian(hall of mental cultivation).

Bao He Dian

Built in 1420, Bao He Dian was formerly called Jin Shen Dian（hall of practising moral culture）and given the present name by the Qing emperor Shunzhi. On the lunar new year's eve,a banquet would be given here by the emperor to princes,dukes and ministers of minority nationalities. Starting from the late period of emperor Qianlong's reign,the hall became the site of the palace examination--the highest level exam of the state in the feudal imperial examination system.It held once every three years and those who passed the exam would get the degree of "Jin Shi". And the first three top were called "Zhuang yuan"(the number one), "Bang yan"(the number two)and "Tan hua "(the number three).

Zhong He Dian

Zhong He Dian was built in 1420 and rebuilt in 1627 after three big fires.It was original named Hua Gai Dian(hall of canopy),and renamed the present one in 1645.Before presiding over grand ceremonies in the hall of supreme harmony, the emperor first came to rest here and receive respects from his officials.On the occasions of offering sacrifices to Xian Nong Tan(altar of agriculture),Di Tan(altar of the earth),She Ji Tan(altar of land and grain) and Tai Miao(imperial ancestral temple),the emperor also came here to examine the sacrificial writings.