Chicago Architecture Foundation Tours, daytime, sunny weather, cityscape, Willis Tower, reflective glass, modern skyscrapers, historic buildings, ornate details, stone walls, intricate carvings, tour guide, holding a microphone, gesturing enthusiastically, group of tourists, wearing casual clothes, sunglasses, walking shoes, listening attentively, taking photos, Riverwalk, Lake Michigan, calm water, sailboats, seagulls flying overhead, clear blue sky, soft natural light, 3/4 composition, urban landscape.