England, Scotland, Wales, N. Ireland, and Ireland
It might be useful to add Ireland to this category. Lots of people go there as tourists. Just a reminder (I always got this confused before I moved to England), Northern Ireland is part of the UK. Ireland (including Dublin) is a country on its own.
Many people are confused about this before, during, and after living in England, so to be fair you’re ahead of the game on that score.
LOL! At least my British husband knows what’s what.