If we had to pick one restaurant to go for the rest of our lives, it would be Restaurang Prinsen. Not only are the interiors perfectly old-school, but the white-apron wearing waiters are the kindest and most welcoming people. Convinced yet? We haven't even mentioned the food yet. Their Swedish meatballs might be the best thing you will ever eat in your life, the recipe perfected over the years. This iconic institution is a true must visit in Stockholm.