Chicago, skyscraper, art deco, modernist, brutalist, contemporary, glass, steel, concrete, sleek lines, geometric shapes, urban jungle, Willis Tower, John Hancock Center, Lake Shore Drive, cityscape, daytime, cloudy, dramatic lighting, low-angle shot, 3/4 composition, reflective surfaces, American flag, pedestrian traffic, busy streets, taxis, buses, streetlights, urban texture, city life, metropolitan vibe.