Ключевые слова: abstract, architecture, background, block, brick, cement, closeup, cobble, cobblestone, concept, concrete, construction, factory, floor, granite, gray, grey, hollow, industrial, industry, interior, manufacturing, material, natural, pallet, pattern, pave, pavement, paving, road, rock, shape, sidewalk, slabs, square, stack, stacked, stone, stones, street, structure, surface, texture, tile, tiles, walkway, wall, warehouse, wooden,