Actually Finno-urgic languages include Finnish and Hungarian; but also include others like Estonian, and many others besides in Russia, northern Norway, Sweden, etc.
Celtic languages (Scottish Gaelic, Irish, Manx, Welsh, Cornish, and Breton) are all distantly related to Latin, and probably closer to Latin than other branches of Indo-European.
Basque is a language isolate spoken in parts of Spain and France. There's also Turkish - part of Turkey is in Europe, but not in the EU.
What is the explanation for part of Turkey being in Europe and part in Asia? AFAIK, that is not common, right, for a country to be part of two continents?
An bhfuil Gaeilge agaibh? I was correcting someone who didn't think that the Celtic languages and Latin were in any way related. That is not true: https://en.wikipedia.org/wiki/Italo-Celtic explains this, even if the similarities are no longer obvious. Hungarian is unrelated to Latin.
No, I'm Brazilian/Hungarian. I've been here for months and still can't even figure out the structure of sentences, much less their meaning (unless it's obvious from external clues). I've always thought of myself as having a knack for languages, but Ireland humbled me. I can write Klingon, but I wouldn't be able to read safety warnings on the train were they not also written in English below.
Which makes me want to put up some bilingual fake warnings with jokes written in Irish and innocent information written in English as if it were a translation from the text above.
It'll be fun to learn Irish from my daughter as she starts school in the next months.