Ключевые слова: abandoned, aged, architecture, assembled, beam, building, column, construction, destruction, dirty, duisburg, engineering, factory, frame, framework, girder, grunge, heavy, ibeams, industrial, industry, iron, landschaftspark, metal, mill, obsolete, old, pipe, plaatsen, plant, retro, roof, ruin, rusty, site, steel, structural, structure, sturdy, urban,