Munitionsbunker, ehemalige belgische Kaserne, Fliegerhorst Werl, KonWerl
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/schwenke/">Axel Schwenke</a>
CC BY-SA 2.0
<a rel="nofollow" class="external free" href="https://www.flickr.com/photos/schwenke/2444923987/">https://www.flickr.com/photos/schwenke/2444923987/</a>