Ключевые слова: abstract, architecture, background, black, block, brick, cement, city, cobble, cobblestone, concrete, construction, design, floor, footpath, gray, grey, ground, material, old, outdoor, pattern, pavement, paving, perspective, road, rough, shape, sidewalk, square, stone, street, surface, texture, textured, tile, urban, view, vintage, walkway, way,