Chicago cityscape, modern skyscrapers, glass and steel buildings, Willis Tower, urban landscape, busy streets, taxis, pedestrians, cloudy sky, afternoon sun, dramatic shadows, sleek lines, minimalist architecture, contemporary design elements, green roof gardens, rooftop terraces, urban parks, Lake Michigan shoreline, sailboats, seagulls flying overhead, vibrant city lights at dusk, cinematic composition, low-angle shot, wide-angle lens.