Chicago cityscape, architectural landmarks, daytime, sunny weather, blue sky with few white clouds, calm Lake Michigan water, tourist boat, wooden benches, metal railings, life jackets, captain's steering wheel, binoculars, maps, tourists taking photos, 3/4 composition, low-angle shot, vibrant colors, detailed textures, Chicago Riverwalk, Willis Tower, John Hancock Center, Navy Pier, modern skyscrapers, historic buildings, stone walls, glass windows, steel frames.