Ключевые слова: america, american, apf, area, astronomical, astronomy, bay, blue, building, california, cars, complex, dome, driving, green, hamilton, high, hills, historical, houses, landscape, lick, mount, mountain, mt, observatory, old, outside, paved, peak, research, residences, road, san francisco, san jose, science, scientific, sky, spring, structure, summit, technology, telescope, united states, university, us, usa, valley, visit, walking,