Ключевые слова: arch, architecture, bar, blue, bridge, building, city, column, concrete, connection, construction, crossing, engineering, equipment, highway, industrial, industry, infrastructure, installing, iron, metal, modern, new, outdoor, over, overpass, pillar, preparation, river, road, safety, scaffolding, site, sky, steel, street, structure, support, technology, traffic, transport, transportation, travel, trestle, under, viaduct, view, water, way, work,