Ключевые слова: architectural feature, architecture, arrow, arrowhead, background, black, blue, boundary, cast iron, clear sky, closed, closeup, cloud, concept, construction industry, copy space, design, entrance, fence, from below, gate, grating, gray, grey, in a row, iron, ironwork, italy, material, metal, metal grate, metallic, modern, outdoors, private property, protection, railing, safety, security, security bar, security system, shape, sharp, shielding, sky, spear, spiked, strength, wrought iron,