Chicago city tour, daytime, sunny weather, Willis Tower (Sears Tower), reflective glass and steel skyscraper, Art Deco style, intricate stone carvings, grand entrance, urban landscape, busy streets, yellow cabs, pedestrians walking, trees lining the sidewalk, Lake Michigan shoreline, Navy Pier, distant boat sailing, clear blue sky with few white clouds, low-angle shot, dramatic composition, sharp contrast, vibrant colors.