The Red Wall At The Corner Of Bauhinia City, A Landmark In Beijing, China Royalty-Free Stock Photography

The Palace Museum is also called the Forbidden City. In ancient China, the planning concept of "the unity of man and nature" was emphasized, and the stars in the sky were used to correspond to the planning of the capital city, so as to highlight the legitimacy of the regime and the supremacy of the imperial power. The Emperor of Heaven lived in the Ziwei Palace, while the emperor of the world regarded himself as the "Son of Heaven" who was commanded by the Heaven, and his residence should symbolize the Ziwei Palace to correspond to the Emperor of Heaven. In the Book of the Later Han, it is stated that "Heaven has the Ziwei Palace, which is the residence of God. A king builds a palace and does it with an elephant." Ziwei, Ziyuan and Zigong became the name of the imperial palace. Because the feudal palace was forbidden in ancient times, ordinary people could not enter, so it was called "Forbidden". In the early Ming Dynasty, it was collectively referred to as "Imperial City" together with Waiban Yuan. In the middle and late Ming Dynasty, it was separated from Waiban Yuan, that is, the palace city was called "Forbidden City", and Waiban Yuan was called "Imperial City".