I recently spent a week in Wales and it was an absolute joy. There's so much to see and the people are great, so I will most likely go back next year.
And one thing you can't help but be impressed by is the Welsh written language. Never before have I seen a language look so random, and I learned that it's a running joke that Welsh is basically just random key smashing. And I don't mean that mockingly, because that is bloody amazing.