Ключевые слова: alone, architecture, ascending, background, blur, blurred, building, business, city, cityscape, communication, concept, corridor, design, entrance, fast, floor, go, hall, high, ladder, light, modern, move, people, person, railing, scene, scenery, shadow, silhouette, space, stair, staircase, stairs, stairway, station, step, subway, underground, up, upstairs, urban, view, walk, way, work,