Tarja at Wacken Open Air 2016 Wacken Open Air 2016 See More Blind Guardian at Wacken Open Air 2016 Red Fang at Wacken Open Air 2016 Caliban at Wacken Open Air 2016 Testament at Wacken Open Air 2016 Triptykon at Wacken Open Air 2016 Symphony X at Wacken Open Air 2016 Metal Church at Wacken Open Air 2016