The main structures in the work area that cannot be missed are the Taihe Dian (the Hall of Supreme Harmony), Zhonghe Dian (the Hall of Central Harmony) and Baohe Dian (the Hall ofPreservedHarmony). All the three main halls are built on an eight-meter-high platform covering a total area of about 85,000 square meters. The Taihe Dian is the largest and most imposing hall. It is 60.1 meters wide, 33.33 meters deep and 35.05 meters high. Here the most important ceremonies of the feudal dynasties were held, such as the emperor's enthronement, his marriage and his conferring of titles and issuing orders on expeditions. On these occasions, thousands of people chanted "long life, long life, and long, long life" to his majesty, and hundreds of musical instruments and bells and drums sounded in unison. Behind the Taihe Dian is the Zhonghe Dian, where the emperor used to rest and receive officials before attending major ceremonies. The northernmost structure is the Baohe Dian, in which the emperor threw banquets and interviewed successful candidates for imperial examinations.

    The living quarters include the Qianqing, Jiaotai and Kunning halls and the six lesser halls on the east and west sides, which together are called "three main halls and six lesser halls", where the emperor and his concubines lived. North of the living quarters is a small but exquisite imperial garden. In the Ming Dynasty (1368-1644) and at the beginning of the Qing Dynasty (1644-1911), all the emperors lived in the QianqingGong(the Palace of Heavenly Purity), while empresses lived in the Kunning Gong (the Palace of Earthly Tranquility). The Jiaotai Dian (the Hall of Union) was a place for the activities of the empresses. But in the middle and late periods of the Qing Dynasty, the emperors and empresses all moved to the six lesser halls on the west side. The most famous is the Yangxin Dian (the Hall of Mind Cultivation). It became the place where most Qing emperors, starting from Emperor Yongzheng, lived and handled state affairs. It is also the place where Empress Dowager Cixi attended to state affairs behind the scenes for as long as 40 years.

    The whole complex is tightly guarded by two defense lines. One is the moat, which is 52 meters wide and six meters deep, surrounding the city wall; and the other is the city wall, which is 3,400 meters long, 10 meters high and 8.62 meters wide at the bottom. There are four gates: Wumen Gate to the south, Shenwu Gate to the north, Donghua Gate to the east and Xihua Gate to the west. On the four corners stand four turret towers, each with three layers of eaves and 72 ridges. They are masterpieces of the ancient architectural art.

    Some halls in the Palace Museum have developed into the Hall of Historical Arts, the Hall of Jewelry, the Hall of Watches and Clocks, the Hall of Paintings, the Hall of Potteries, the Hall of Toys and so on. The museum has a collection of 1,052,653 pieces of ancient art treasures, accounting for one sixth of the total cultural relics in China. It is the museum with the richest collection of cultural relics in China, and also a world-famous museum of ancient cultural arts. Many cultural relics preserved in it are unique in the world.