Chicago, Willis Tower, skyscraper, modern architecture, sleek glass façade, steel beams, urban landscape, sunny day, blue sky, fluffy white clouds, dramatic shadow, strong contrast, cityscape, busy street, yellow taxi, American flag waving, detailed stone carvings, Gothic Revival style, grand entrance, ornate metal doors, marble flooring, majestic staircase, panoramic view, 3/4 composition, low-angle shot, warm lighting.