Modern skyscraper, glass façade, steel structure, sleek lines, urban cityscape, busy streets, New York City, Chicago, Los Angeles, San Francisco, large corporation, Gensler, Perkins+Will, HOK, KPF, SOM, AECOM, HDR, top architecture firms, American flags waving, sunny day, blue sky, white clouds, detailed reflections on glass, panoramic view, low-angle shot, dramatic lighting, cinematic composition.