MusicWacken Open Air: A Festival‘s HistoryTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMusic08/04/2018August 4, 2018Each year in August, a town in northern Germany becomes the world capital of heavy metal. It started off in 1990 with 800 visitors. In 2018, 75,000 visitors are expected. How a bright idea became a success story.https://p.dw.com/p/32c1PAdvertisement