12. Sweden
Cost of travel for a month for one person: $4,044
Sweden is probably the most peaceful country in the world. They like to keep to themselves, but that does not mean they don’t welcome visitors with open arms. Sweden is a beautiful country and full of wonderful and amazing city life. No matter what you like, you are going to find a lot of things about Sweden that you love before your month-long trip ends. While you are there, do not forget to visit Stockholm, Gothenburg, Malmö, Uppsala, etc.