T:Why is it called the "Forbidden City? G:The reason it is referred to as the Forbidden City is because the emperors of China used to regard this place as a heavenly palace, so ordinary people were strictly forbidden to come near it, not even to speak of going inside.
T:I see. And you call it the Palace Museum now, don't you? G:Yes. As far as I know, it's the largest existing imperial palace in the world today. T:How large is the palace? G:It occupies 720000 square meters and there are more than 9000 rooms in it. T:My goodness! It really is big!