Ключевые слова: abstract, architecture, backdrop, background, block, brick, cement, concrete, construction, decoration, decorative, design, detail, dirty, empty, exterior, floor, flooring, footpath, granite, gray, ground, line, material, mosaic, natural, old, outdoor, pattern, paved, pavement, paving, perspective, road, rock, rough, shape, sidewalk, square, stone, street, surface, texture, textured, tile, urban, walkway, wall, wallpaper,