As part of my job, I travelled and worked quite a bit round the UK, Europe and occasionally the USA. My favourite country was, and still is, Germany. I lived in both Mainz and Hamburg and visit the country most years. I can't say that I really disliked any country, though I wasn't impressed by my time in Turin. (I stayed in a hotel that was once part of the Fiat factory. It still had the banked test track - on the roof!)
My last project was in Oulu, N. Finland. I really liked it there. Finland has very distinct seasons with very short transitions between them - and the Finns celebrate them all.
While there we took the Santa Claus express train to Rovaniemi to visit the real Santa in his summer quarters. We've got a photo to prove it. It was 30C. on the Arctic circle. Mrs. T and I were in T shirt and shorts - Santa was wearing a grey cloak - in his air conditioned office.
I'd like to go back there for a visit.