Ключевые слова: abstract, architecture, background, black, block, brick, cobble, cobblestone, concrete, construction, exterior, floor, footpath, ground, material, mosaic, old, outdoor, path, pattern, paved, pavement, paving, pebble, perspective, road, rock, rough, shape, sidewalk, square, stone, street, surface, texture, textured, tile, traditional, urban, vintage, walkway, wall,