Ключевые слова: abandoned, architecture, blue, building, business, cement, chimney, concrete, construction, dirt, engineering, environment, environmental, equipment, exterior, factory, gravel, heavy, industrial, landscape, large, machine, machinery, manufacture, material, metal, mill, mineral, mining, mountain, nature, old, pipe, plant, pollution, power, production, quarry, rock, sand, silo, sky, stack, steel, stone, storage, structure, technology, tower, work,