chapter house vs place of worship

chapter house

noun
  • A building attached to a cathedral, church, or monastery and used as a meeting place. 

  • A building used by a sorority or fraternity as a residence or meeting place. 

place of worship

noun
  • A place, usually a building such as a church, mosque, synagogue or temple where believers can practise their faith. 

How often have the words chapter house and place of worship occurred in a corpus of books? (source: Google Ngram Viewer )