On my way home from Trier, I stopped in Luxembourg city just to check it out and cross another country off my list. I only spent about an hour there because there is not much to see or do, but it is a very pretty city. There is only one major city in Luxembourg, which is also called Luxembourg. It is largely commercial, but there is a small historic downtown which is a charming place to shop and have a meal. It is definitely not worth going out of your way to visit, but it is a very charming place to visit if you are already nearby.