Just the thought of elves might make your kids jump for joy. 5. United Kingdom The United Kingdom is a land steeped in mystery and legend. Kids love visiting the historic castles and landmarks which are famous around the world, such as Big Ben and Stonehenge. For ease of travel and easy places to stay and eat, the UK is a great family-friendly travel destination. Harry Potter fans can follow the Harry Potter trail through locations associated with the books and the films, such as the location in Scotland which formed the backdrop for Hogwarts.