Ключевые слова: architectural, architecture, background, balcony, black, building, city, construction, design, detail, door, down, emergency, escape, evacuation, exit, external, fire, home, house, iron, ladder, metal, modern, office, outdoor, outside, railing, safety, stainless, stair, staircase, stairs, stairway, stairwell, steel, step, structure, up, urban,