Chicago cruise, architecture tour, daytime, clear blue sky, sunny weather, calm Lake Michigan water, sailboat, speedboat, or luxury yacht, Chicago Riverwalk, Willis Tower, John Hancock Center, Tribune Tower, Wrigley Building, Navy Pier, ornate ironwork bridges, modern skyscrapers, Art Deco, Gothic Revival, Neoclassical styles, detailed stonework, intricate carvings, reflective glass, steel beams, luxurious interior, wooden decks, comfortable seating, informative tour guide, binoculars, casual tourists, lively atmosphere, panoramic view, wide-angle shot, vibrant colors, high-contrast lighting.