I remember being shocked that I spent an entire afternoon wandering around Pompeii. It's so rich with things to see, that you can easily lose yourself for several hours.
The Forbidden City is like that, several times over. After nearly six hours, we still hadn't seen it all, and some of the rear palaces we rushed through. But it was closing time.
As it is a must-see for any visitor to Beijing, we're not worried; we'll be back, probably several times.
Here are just a few of the pics from our day: