Ключевые слова: abstract, area, background, block, brick, cement, cobble, cobblestone, construction, floor, footpath, geometric, grey, grid, ground, material, modern, nobody, old, outdoor, pattern, pave, paved, pavement, paving, perspective, road, rock, rocky, rough, sett, sidewalk, stone, stony, street, surface, texture, tile, tiled, urban, wall, way,