plaza vs town square

plaza

noun
  • An open area used for gathering in a city, often having small trees and sitting benches. 

  • A town's public square. 

  • A shopping mall. 

  • A strip mall. 

town square

noun
  • An open area commonly found in the heart of a traditional town, used for community gatherings. 

  • An online space or platform which serves a similar function. 

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