Ключевые слова: architecture, background, block, blue, build, builder, building, buildings, business, cement, city, concrete, construct, construction, crane, development, engineering, equipment, estate, foundation, hard, high, house, industrial, industry, infrastructure, iron, job, labor, lift, machine, material, metal, new, people, progress, project, safety, scaffold, scaffolding, site, sites, sky, steel, structure, technology, tool, urban, work, worker,