From: William Gowen <wdgowen_at_gmail.com>
Date: Mon, 18 Mar 2013 15:53:50 -0400
It's in Oberhausen, Germany and was decommissioned 20 years ago. It's
about 230' in diameter according to Google Earth. This looks like an
excellent possibility for a flying site!
Here's a link to an amazing 360 degree inside view: