Chicago, cityscape, Willis Tower, John Hancock Center, Navy Pier, Lake Michigan, boat tour, summer 2004, sunny day, clear blue sky, few white clouds, gentle breeze, architecture styles, modern skyscrapers, historic buildings, ornate details, water reflections, sailing boats, tourist crowds, casual clothing, sunglasses, hats, smiling faces, joyful atmosphere, warm lighting, low-angle shot, panoramic view.