Forbidden city (1420-1911) is for the Last Ming and Qing Dynasty. There are 22 emperors who used to live inside the forbidden city , and they ruled the whole country from the Forbidden city. Before you come to visit here, I suggest that you should watch the movie the Last emperor puyi. Then you will have a better understanding about Chinese culture and history. The forbidden city can be match with  The Louvre Museum . Welcome to your visit.