Ключевые слова: abstract, architecture, background, blocks, brick, building, cement, city, concrete, construction, design, detail, empty, exterior, granite, gray, grey, house, industry, masonry, material, modern, nobody, old, outdoors, pattern, pavement, rock, rough, shadow, shape, sidewalk, solid, stack, stair, staircase, stairway, step, stones, structure, surface, textured, tile, up, urban, walkway, wall, way, white,