Ключевые слова: building, ceiling, city landscape, commercial, company, concrete, constructed zone, construction, development, equipment, floor, foundation, hall, inside, interior, labor, large crane, lobby, machinery, management, material, men at work, modern architecture, process, progress, project, real estate, reinforcement, safety, site, steel, story, structure, sun, sunrise, supervisor, technique, technology, time frame, tool, under construction, urban,