Ключевые слова: abstract, architecture, background, building, cement, city, concept, concrete, construction, contrast, design, detail, down, downwards, empty, entrance, exterior, floor, geometric, granite, gray, grey, grunge, industrial, ladder, lines, material, modern, nobody, old, outdoor, pattern, perspective, rise, shape, stair, staircase, stairs, stairway, step, steps, stone, structure, texture, up, urban, walkway, wall, way, white,