Watch Online Free HD Solarmovies. Wacken Open Air is the biggest 3-day-rock- and metal-festival in the world. It's three days of raw energy, non-stop Heavy Metal music at full blast and 80.000 fans on a party frenzy. A true legend, taking place annually since 1990 in the sleepy German country town of Wacken, it attracts fans from all over the world. It was released on 24th of December 2014 on dvd, blu ray and 3D blu ray.