observatory vs outlook

observatory

noun
  • A lookout (vantage point with a view of the surrounding area) 

  • A place where stars, planets and other celestial bodies are observed, usually through a telescope; also place for observing meteorological or other natural phenomena. 

outlook

noun
  • A place from which something can be viewed. 

  • Expectation for the future. 

  • look; appearance 

  • An attitude or point of view. 

  • The view from such a place. 

How often have the words observatory and outlook occurred in a corpus of books? (source: Google Ngram Viewer )