Ключевые слова: activity, architecture, blue, building, built, cement, cityscape, clear, color, concrete, construction, contractor, crane, design, engineering, equipment, exterior, frame, heavy, homestead, housing, industrial, industry, large, machine, machinery, majestic, material, metal, modern, new, outdoors, part, residential, road, scaffolding, scene, silhouette, site, sky, skyscraper, square, steel, structure, subcontractor, summer, tall, technology, tower, urban, work, working,