Architectural museum, Chicago, grand staircase, modern interior, sleek glass railings, polished marble floors, natural light pouring in through floor-to-ceiling windows, abstract art installations, interactive exhibits, visitors taking photos, urban landscape outside, Willis Tower, skyscrapers, cityscape, cloudy blue sky, afternoon sun casting long shadows, detailed textures, reflective surfaces, 3/4 composition, high-angle shot, softbox lighting.