gravestone vs shrine

gravestone

noun
  • A stone slab set at the head of a grave. 

shrine

noun
  • A case, box, or receptacle, especially one in which are deposited sacred relics, as the bones of a saint. 

  • A place or object hallowed from its history or associations. 

  • A holy or sacred place dedicated to a specific deity, ancestor, hero, martyr, saint, or similar figure of awe and respect, at which said figure is venerated or worshipped. 

verb
  • To enshrine; to place reverently, as if in a shrine. 

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