Irish, The Wall of course, then there is the Summer Palace, the zoo is actually a good place to see Panda's, last time i was there they had 15. The Hall of good Harvests, (at least 2-4 hours) The summer Palace is a good 4 to 5 hours walk around. If you see everything. The summer palace is real close to Tianneman Square. The silk bazaar is really something to see. There is "Sex in Da City" and a place called the "Bunny Club", I did not go into the last two. lol. They are over by the Lufthansa Mall. The only one I took a tour to was the Wall. It was a 6 -7 hour day. Cost $50 usd, if I remember correctly. It was a Bus a tour, guide, Lunch ( was very good) and two stops. One to a Jade Factory and the other to a Holistic type clinic. The rest I had my "Godson" he is a registered tour guide. There is Mao's tomb. I did not go there the last time, This time I will. This will be my third trip to Beijing and so I will have plenty of time this time to see a little more. You do not have to have a guide in the Summer Palace, everything is very well marked and in English also but you can miss a lot without one. I cant think of anything else, maybe Arnold can.