We went to the Forbidden City. It's in Beijing but it's like a city with high walls all around it. It's very big, with lots of buildings and stairways. It was where the emperors lived for most of the year. It was called the forbidden city because ordinary people were forbidden to enter it. China doesn't have emperors now but people like to come and see it and learn about their history. China has a very long history - thousands of years!