Ключевые слова: architecture, background, barricade, barrier, bars, beautiful, boundary, building, city, concrete, construction, crowd, design, empty, enclosure, equipment, fence, flare, gate, group, guard, industrial, industry, iron, line, metal, modern, new, outdoor, pattern, pole, prevent, protect, protection, public park, road, row, save, security, shield, sidewalk, sky, spike, stand, steel, street, traffic, view, wheeled vehicle, white,