Ключевые слова: architecture, background, blue, board, building, business, close, concept, design, direction, door, driveway, electric, emergency, empty, entrance, evacuation, exit, fence, forward, gate, gates, green, home, house, icon, information, light, metal, modern, office, open, opportunity, property, residential, retro, road, safe, safety, secure, security, sign, signage, steel, street, symbol, transportation, travel, wall, way,