<a href="//commons.wikimedia.org/wiki/Paderborn" title="Paderborn">Paderborn</a>, Germany: <a href="https://en.wikipedia.org/wiki/Paragon_Arena" class="extiw" title="en:Paragon Arena">paragon arena</a> (Since 2009: <i>Energieteam Arena</i>), partly finished. The photo was taken during the building freeze between november 2005 and november 2007.
<a href="//commons.wikimedia.org/wiki/User:Zefram" title="User:Zefram">Zefram</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>