Chinese Property /Inventory investigation Report Book of Forbidden City, the Republic of China 16 years , published by The Palace Museum of Forbidden City, size: 25.5cm by 17.2cmForbidden City, also known as the Palace Museum, and Gu Gong in Chinese, lies at the city center of Beijing, and once served as the imperial palace for 24 emperors during the Ming and Qing Dynasties (1368 - 1911).Ancient Chinese Astronomersbelieved that the Purple Star (Polaris) was in the center of heaven and the Heavenly Emperor lived in the Purple Palace. The Palace for the emperor on earth was so called the Purple City. It was forbidden to enter without special permission ofthe emperor. Hence its name 'The Purple Forbidden City', usually 'The Forbidden City'.