Ключевые слова: abstract, aluminum, architecture, background, balustrade, building, business, city, construction, dark, design, detail, entrance, escalator, floor, gray, handrail, home, indoor, interior, iron, light, mall, metal, metro, modern, new, office, old, outdoor, pattern, perspective, railing, railings, stainless, stair, staircase, stairway, station, steel, step, stone, subway, technology, transport, transportation, up, urban, wall, white,