Chicago River architecture tour, daytime, sunny weather, blue sky with few white clouds, luxurious glass-enclosed boat, sleek design, silver trim, soft cushioned seats, wooden floor, professional tour guide standing at the bow, microphone in hand, pointing at iconic buildings, Willis Tower, Tribune Tower, Wrigley Building, ornate details, Art Deco style, historic landmarks, Lake Michigan shoreline, cityscape, vibrant green trees along the riverbank, calm water reflections, soft natural light, panoramic view.