Ключевые слова: abstract, background, block, brick, brown, city, cobble, cobblestone, construction, cube, floor, footpath, granite, gray, grey, ground, line, material, old, outdoor, pattern, paved, pavement, paving, pedestrian, road, rock, rough, russia, shape, sidewalk, square, stone, street, surface, texture, textured, tile, urban, walkway, way,