Washington Dulles International Airport, modern architecture, sleek lines, silver metallic exterior, large glass windows, angular roof, spacious interior, high ceiling, bright natural light, marble flooring, stainless steel columns, busy atmosphere, people walking, luggage carts moving, flight boards displaying departure information, security checkpoints, airport lounges, coffee shops, restaurants, gift stores, 3/4 composition, shallow depth of field, warm lighting, afternoon sunlight streaming through windows.