Visited the city of Luxembourg today. Knew basically nothing about it before coming, except that they have four national languages. And I still know basically nothing about it, except that it's stupidly beautiful absolutely everywhere, extremely wealthy, and that they do banking stuff for the EU. I highly recommend checking it out, because I've never seen such an impeccable city. Like many European cities, this is a good mix between modern and older architecture. But there's no rundown buildings at all.