3 days in Beijing (with halal food thrown in)
So cheap. Ridiculously cheap for transport. Everywhere on the underground only cost around 25 pence (one way) in UK money. Visit Mutianyu section of the wall - it was not crowded at all unlike other parts like Badaling I hear. Visit the thousand yr old mosque in NiuJie and eat muslim Chinese food. Naturally you will visit the Forbidden City and Tiananmen Square - be prepared to have people ask to take photos with you if you are non Oriental! Expect weak scenery photos due to pollutio
Insider Tip:Visit the unknown thousand year old mosque at NiuJie where hit can also get amazing muslim Chinese cuisine nearby. Real treat for me. Here you will also see the non developed and poor part of Beijing with proper hutongs.