The hilly Roskilde, the birthplace of the four-day festival, which is probably the best rock festival in Europe is less than 20 miles from Copenhagen. When in this town with a population of 50,000 people is not raging hordes of rock stars, its main attraction is a great Viking Ship Museum. The museum five ships discovered at the bottom of the fjord. You too can feel like a Viking, going one-hour tour of the Drakkar. Roskilde is also famous for repeatedly rebuilt cathedral of the XII century.