Ключевые слова: america, architecture, attraction, beach, blue, building, ca, california, christopher, christopher columbus, city, coit, coit tower, columbus, filbert, filbert stairs, francisco, greenwich, greenwich steps, high, hill, historic, landmark, monument, north, north beach, san, san francisco, sky, stairs, states, statue, steps, street, structure, symbol, tall, telegraph, telegraph hill, tourist, tower, town, travel, united, united states, urban, us, usa, vertical,