Ключевые слова: america, american, apartment, architecture, block, building, california, city, cityscape, construction, design, downtown, emergency, escape, estate, exit, exterior, facade, fire, flat, francisco, home, house, housing, iron, ladder, living, old, outside, residential, safety, san, staircase, stairs, stairway, steps, street, structure, town, traditional, urban, usa, wall, window,