Ключевые слова: abstract, aged, background, beam, block, brick, building, ceiling, cement, concrete, construction, dirty, ferroconcrete, floor, foundation, frame, gray, grey, ground, grungy, heap, horizontal, laying, masonry, material, monolith, old, overlapping, panel, plank, plaster, raft, reinforcement, rock, rough, site, slab, stack, stone, stucco, surface, texture, urban, wall, weathered,