gazebo vs sanctuary

gazebo

noun
  • A belvedere, either a type of summer-house or a roofed, detached porch-like structure, usually in a yard, park or lawn. 

sanctuary

noun
  • The consecrated (or sacred) area of a church or temple around its tabernacle or altar. 

  • A state of being protected, asylum. 

  • My car is a sanctuary, where none can disturb me except for people who cut me off. 

  • A place of safety, refuge, or protection. 

  • An area set aside for protection. 

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