Ключевые слова: abstract, architecture, background, block, brick, building, cement, city, concrete, construction, decoration, design, floor, gray, grey, ground, industry, material, mosaic, new, old, outdoor, pattern, pave, pavement, paving, pile, repair, road, rock, rough, shape, sidewalk, slab, square, stack, stone, street, structure, surface, texture, textured, tile, tiled, urban, walkway, way,