Ключевые слова: activity, architecture, block, blue, build, building, built, business, cement, city, commercial, concrete, construction, crane, development, engineering, equipment, erect, estate, exterior, frame, growth, heavy, high, hoist, house, housing, industrial, industry, lift, lifting, machine, metal, modern, progress, project, rise, scaffold, scaffolding, scene, site, sky, steel, structure, tall, technology, tower, up, urban, work,