Images from https://geohints.com/Bollards.html (taken from google street view). ||||| Accepted answers are regions if the bollards are only found in a specific region of a country (e.g. Bermuda), and country names otherwise (let me know of any mistake). ||||| Includes islands off the coast of America (to the east), does not include overseas territories of american countries. ||||| Includes waystones, snowpoles and barricades.