The Forbidden City, it is is a UNESCO World Heritage Site. It is very important to the history and architecture of China. For almost 500 years, it was as the home of emperors and their houses
The construction of the palace began in 1406 and went on for over 14 years and more than a million workers had to work on building it. (1406-1420). The museum consists of 980 buildings.
Sources:
kids.kiddle.co
creativecommons.org
wikipedia