Ключевые слова: architecture, assemble, beams, blue, building, city, clear, concrete, construction, constructionist, crane, daytime, development, elevation, engineering, equipment, exterior, foundation, frame, framework, height, industrial, infrastructure, material, modern, outdoor, progress, project, safety, scaffolding, site, sitework, sky, skyward, stability, steel, structure, support, tool, unfinished, urban, work,