Skyscraper, modern cityscape, urban landscape, largest US architecture firms, sleek glass facade, steel frame structure, towering high-rise building, bustling streets, busy sidewalks, suits and ties, business professionals, laptops and coffee cups, conference rooms, blueprints on the table, innovative designs, 3D modeling software, creative brainstorming sessions, collaborative work environment, floor-to-ceiling windows, panoramic city view, morning light, soft focus, shallow depth of field, cinematic composition.