centre of attention vs curiosity

centre of attention

noun
  • Something that attracts a lot of attention. 

curiosity

noun
  • A unique or extraordinary object which arouses interest. 

  • Inquisitiveness; the tendency to ask and learn about things by asking questions, investigating, or exploring. 

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