May I see a photo of the transit area of PEK. I shall be spending 6 hrs there.

I have no a picture, but it is fine to roam around the transit area, where there are restaurants and cafes for your choice. Generally, 6 hours is too tight to have a short trip in downtown. It is suggested not to take the risk. Well, if you are tired, it is also flexible to stay in the hourly lounge for a rest.