Columbia University, Low Library, Morningside Heights, Manhattan, New York City, autumn, sunny day, blue sky, white clouds, students walking, backpacks, casual wear, jeans, sneakers, hats, sunglasses, smiling faces, architectural models, drafting tables, pencils, laptops, coffee cups, group discussion, modern buildings, glass facades, steel structures, stone walls, green roofs, urban landscape, cityscape, horizontal composition, warm lighting, shallow depth of field.