Ключевые слова: architectural, architecture, background, beam, blackfriars, blackfriars bridge, blue, bolt, bottom, bridge, business, close, construction, design, detail, elements, engineering, format, girder, gray, industry, iron, london, metal, modern, nuts, painted, portrait, railway, simmetrical, simmetry, steel, steel beam, steel bridge, steel connections, strength, structure, technology, uk, up,