Ключевые слова: aerial view, america, american, architecture, build, builder, building, business, candid, cement, co, colorado, colours, concrete, construction, construction site, contemplation, cooperation, crane, creation, daytime, equipment, exterior, foreman, helmet, highrise, horizontal, industrial, industry, men at work, metropolitan, outside, panel, person, photo, project, pump, safety, site, skyscraper, structure, tools, urban, us, vehicle, warehouse, work, worker, working,