Chicago River, architecture tour, daytime, sunny weather, clear blue sky, modern skyscrapers, reflective glass windows, steel beams, urban cityscape, riverwalk, pedestrian path, sailboats, kayaks, seagulls flying overhead, Willis Tower, John Hancock Center, Tribune Tower, historic bridges, stone arches, ornate iron railings, vibrant street art, blooming flowerbeds, lush greenery, dramatic cloud formations, soft natural light, high-contrast shadows, wide-angle lens, cinematic composition.