Ключевые слова: arc, arch, architecture, architecture backgrounds, autumn, blue, bridge, building, built, circle, city, city life, cityscape, downtown, downtown district, dusk, famous, gateway, gateway arch, green, illinois, illuminated, jefferson national expansion memorial park, life, midwest usa, missouri, monument, national monument, national park, night, nobody, old, place, purple, reflection, river, sky, skyline, skyscraper, st louis, sunrise, sunset, tall, travel destinations, travel locations, twilight, urban scene, usa, water, waterfront,