Nice work! It's quite cool.

Feedback:

  - It'd be great to be able to move the map around, zoom in / out - staying in one place feels a bit restricting.
  - For some smaller countries you can't actually see where they were once the ring is put over them
  - Once a country has been identified it'd be handy to see their neighbouring countries to add some more context to where a country is.
  - It'd also be nice to learn a bit more about a country (e.g. unique things about it) that may help further cement the idea of a country so that it's more than just a name on a map.