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observatory An observatory is a location used for observing terrestrial and/or celestial events. Astrology, astronomy, climatology/meteorology, geology, oceanography and volcanology are examples of disciplines for which observatories have been constructed. Historically, observatories were as simple as containing a sextant (for measuring the distance between stars) or Stonehenge (which has some alignments on astronomical phenomena). More... Cerro Paranal observatory, Chile Mauna Kea observatory, Hawai Lowell Observatory Kitt Peak Observatory Mount Hamilton Observatory, Canada David Dunlop Observatory, Toronto, Canada Griffith Observatory, Los Angeles, California, USA The Pluto Telescope in Lowell Observatory A.S.I.G.N Observatory Gemini Observatory, Mauna Kea, Big island Hawaii Arebico Observatory, Puerto Rico National Radio Astronomy Observatory, Virginia, USA Griffith Observatory. Los Angeles, USA McDonald Observatory, Texas, USA Palomar Observatory, San Diego County, California, USA [ Back ]