Ключевые слова: architecture, assembly, background, beam, black, blue, bridge, building, connect, construction, design, engineering, frame, girder, heavy, industrial, industry, iron, journey, line, machinery, megastructure, metal, old, outdoor, platform, production, project, rail, railroad, railway, raw, road, rock, scene, seam, sky, sleeper, steel, stone, strait, structure, track, traffic, train, transport, transportation, travel, tree, white,