Ключевые слова: activity, apartment, architecture, blue, buildings, built, civil, colored, concrete, construction, crane, development, engineering, equipment, factory, frame, gray, heavy, high, housing, industry, iron, laborer, machinery, mega, men, mixer, occupation, operator, outdoors, overhead, picking, plan, real, reinforcement, rest, roof, scaffolding, shine, site, sky, structure, sun, sunset, tall, time, tower, up, urban, worker,