Chris de Burgh is not the only one who considers Westfalenhalle,the best place in the world to make music, The unparalleled atmosphere of this listed historical domed building with a U on the roof is legendary. Around 250 events take place on its stage each year.
https://www.dortmund-tourismus.de/en/discover-dortmund/culture/music/poi/westfalenhallen-dortmund.html