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      astronomical observatories at Pittsburgh, United States

    • Allegheny Observatory
      7km
      website
      Allegheny Observatory, University of Pittsburgh, Pittsburgh, Pa (69846)
      Allegheny Observatory 2007a
      Allegheny Observatory 2007b
      Allegheny Observatory, 2015-05-14, 03
      Allegheny Observatory, August 2014
      Observatory (8603359753)
      Allegheny Observatory 2015-01-05, 02
      Allegheny Observatory, Observatory Hill, Pittsburgh 02
      Allegheny Observatory, 2015-05-14, 04
      AlleghenyObservatoryMarch2013
      Allegheny Observatory, 2015-05-14, 05