Ключевые слова: architecture, block, blue, boston, building, business, cement, city, clouds, construction, corporate, crane, development, downtown, engineering, equipment, estate, formwork, frame, high, industrial, industry, lifting, ma, machine, new, nobody, office, progress, project, reinforcement, roads, scaffolding, site, sky, skyscraper, steel, structure, tall, tower, urban, us, work,