Ключевые слова: asphalt, atlanta, block, bronze, cast, circle, city, cover, dirty, drain, floor, footpath, fragment, grate, grid, grungy, heavy, hole, industrial, iron, lid, manhole, metal, metallic, old, opening, pavement, road, round, rust, rusty, sewage, sewer, shape, sidewalk, steel, street, surface, texture, urban, utility, waste, worn,