Ключевые слова: aging, aging process, architecture, astronomy, authority, beautiful, beauty, blue sky, building, california, clear sky, construction, copy space, day, development, disciplines, door, doorway, entrance, entry, famous place, griffith observatory, landmark, light, los angeles, low angle view, message, natural science, no people, nobody, numeral, observatory, orthographic symbol, outdoors, place of interest, point of view, research facility, science, sign, skill, sky, southern california, sunlight, symbol, text, travel, travel destination, travel destinations, usa,