Ключевые слова: abstract, architecture, asymmetrical, background, black, blocks, blotch, brick, brickwork, building, cement, concrete, construction, dark, element, exterior, floor, flooring, footpath, grain, granite, grid, ground, hard, loft, masonry, material, natural, pattern, rock, rough, rugged, seamless, sidewalk, skin, slab, solid, square, stone, stonewall, structure, surface, textured, tile, tiling, wall, wallpaper,