15. Ljubljana, Slovenia
Average Cost Per Week: $617
We’ll start the list of best cities to spend a week in Europe on a budget, with Ljubljana, the capital of Slovenia. $617 is the average cost of the vacation in the country for a week, but for the purposes of this article, we will talk about the capitals since we are focusing on cities. Ljubljana, like many Eastern Europeans, has a historic “old town” mixed with the more modern areas of the city. The city is known for its large population of university students, so it’s bound to have nightlife and lots of other things to do.