Ключевые слова: abstract, architecture, background, build, cement, cementum, closeup, concrete, cover, covered, crack, cracks, craggy, crisp, design, dirt, dirty, gray, grey, ground, grunge, grungy, hard, industrial, limestone, materia, natural, old, outdoor, pattern, plaster, rough, sharp, slab, soggy, stone, surface, texture, uneven, urban, wall, walls,