Passing through Tiananmen Gate Tower is the Palace Museum. No matter when, there are many visitors to the Palace Museum. It is suggested not to go on holidays. In order to save time, I booked the morning ticket of the Palace Museum directly in the delegation. I could enter the Palace Museum by brushing my ID card directly during the security check. Usually, according to the unique central axis design of the Palace Museum, visitors will enter the Palace Museum layer by layer and visit both sides appropriately for at least half a day. The original Forbidden City, as the imperial city, had more than 8000 rooms, large and small, with yellow tiles, red walls, gold ornaments and white stones. Centered on the three halls of Taihe Hall, Zhonghe Hall and Baohe Hall, there are also Qianqing Palace, Jiaotai Palace, Kunning Palace and the northernmost imperial garden, the Six Eastern and Western Palaces, Wenyuan Pavilion, Military Aircraft Office, Watch and Clock Hall and other buildings.