Ключевые слова: abstract, background, barbed, barrier, blue, border, boundary, breach, business, cage, chainlink, closeup, commercial, construction, corporate, crime, design, diminishing, escape, exterior, fence, forbidden, frame, freedom, future, grate, gray, green, grid, house, industrial, isolated, mesh, metal, metallic, modern, net, netting, office, old, pattern, perspective, protection, rod, shape, silhouette, skyscraper, texture, urban, view,