Ultraschall (German: Ultrasound, German: [ˈʊltʁaʃal] ) was a nightclub in Munich, Germany from 1994 to 2003. The techno club belonged, besides the Tresor and E-Werk in Berlin, the Dorian Gray and Omen in Frankfurt, and the Munich-based clubs KW – Das Heizkraftwerk, Natraj Temple and Millennium, to the most renowned clubs of Germany's 1990s...