burial chamber vs cellar door

burial chamber

noun
  • A chamber, often below ground level, used to bury the remains of the dead. 

cellar door

noun
  • A door leading to a cellar. 

  • In phonaesthetics, a quintessential example of an inherently pleasant-sounding phrase irrespective of its meaning. 

  • Part of a winery from which wine may be sampled or purchased. 

How often have the words burial chamber and cellar door occurred in a corpus of books? (source: Google Ngram Viewer )