The forbidden city was very popular and I got split up from my travelling companion by the mass of people trying to get in. I also got hit in the face a number of times with umbrellas. I am not sure how long the city is, it felt like we had walked a couple of miles from Tiananmen square through the forbidden city and up to the Jingshan park where you can get a panoramic view of the city. The overcast weather meant the light was pretty flat for photography it was only occasionally that the sun came out. I think a lot of it was smog as much as cloud cover.