Countries of the World.zip is a release file of the Minecraft map Countries of the World, made for Minecraft 1.16.5. It was published on July 27, 2021 and is 25.9 MB in size. For the full description, screenshots and every other version, visit the Countries of the World map page.
How to install: Extract the .zip and move the world folder into .minecraft/saves; the map then appears in your Singleplayer list.