Ключевые слова: abstract, architecture, background, block, brick, city, cobble, cobblestone, concrete, construction, design, exterior, floor, footpath, granite, gray, grey, ground, material, old, outdoor, pattern, pave, paved, pavement, paving, perspective, road, rock, rough, seamless, sett, shape, sidewalk, slate, square, stone, stones, street, surface, texture, textured, tile, tiled, tiles, urban, walk, walkway, way,