city center vs honey hole

city center

noun
  • The central business and shopping area of a city. 

honey hole

noun
  • A location or situation which yields something of significant value. 

  • A vagina or vulva, as an object of sexual interest. 

  • A hole in the trunk of a tree, containing the natural honey produced by a colony of bees. 

How often have the words city center and honey hole occurred in a corpus of books? (source: Google Ngram Viewer )