Ключевые слова: architecture, arrow, background, blue, build, building, business, cargo, clouds, commercial, construction, crane, development, estate, exterior, factory, frame, framework, girder, high, home, house, housing, industrial, iron, material, metal, modern, new, office, perspective, roof, safety, site, sky, skyscraper, steel, steelwork, strength, structure, tall, technology, tower, tower crane, truss, urban, warehouse, work, workplace, yellow,