beijing in polluted air

air airscape anmen asia atmosphere background beautiful beauty beijing bigalopolis bird birds birdseye building buildings business capital cbd cctv center central chairman china city constructions cramped deep dirty district down eye fallout famous fog future grand gray great green hall high image international landmarks large look luxury many mao memorial metropolis mist modern national new office old overlook panorama panoramic people picture polluted pollution real sky skyline skyscape skyscraper smog the theater tian towers trade trees view