Subway Line 8 (Olympic Special Line): get off at Olympic Green Station Exit D, to visit Xin'ao Shopping Centre for dinner.
Take upstairs going to road area, walk towards south direction, look for Nest or Ling Long Pagoda (which is hard to miss).
These area are inside guarded village. No need for entrance fee but they are requiring the visitors to pass x-ray scanners.
National Stadium (Bird's Nest)