Ключевые слова: activity, apartment, architecture, background, blue, build, building, business, city, cloud, clouds, concrete, construction, crane, cranes, development, engineering, equipment, estate, exterior, frame, heavy, high, house, housing, industrial, industry, lift, lifting, machine, machinery, metal, modern, new, outdoor, progress, project, scaffolding, site, sky, skyscraper, steel, structure, tall, technology, tower, urban, white, work, yellow,