Ключевые слова: ancient, antique, architecture, astrological, astrology, astronomical, astronomy, building, calendar, circle, city, clock, culture, day, dial, engelberg, europe, european, gothic, heritage, historic, historical, history, hour, hours, landmark, medieval, minute, monastery, monument, number, old, science, sign, solar, stone, sun, sundial, switzerland, symbol, technology, time, tourism, tower, town, travel, vintage, watch, window, zodiac,