Chicago cityscape, architectural landmarks, sunny day, blue sky, Willis Tower, reflective glass, steel structure, modern skyscrapers, Gothic Revival style, ornate details, stone carvings, grand entrance, intricate stonework, City Hall, vibrant street art, busy streets, urban atmosphere, pedestrians walking, tourist taking photos, guided tour group, professional camera equipment, wide-angle lens, low-angle shot, dramatic lighting, warm natural light, 3/4 composition, shallow depth of field.