Zuckerhutbunker Goldenbergwerk, Hürth-Knapsack
<ul><li><a href="//commons.wikimedia.org/wiki/File:Knapsack_Zigarrenbunker_01.jpg" title="File:Knapsack Zigarrenbunker 01.jpg">Knapsack_Zigarrenbunker_01.jpg</a>: <a href="//commons.wikimedia.org/wiki/User:Achim_Raschka" title="User:Achim Raschka">Achim Raschka</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Achim_Raschka" title="User talk:Achim Raschka"><span class="signature-talk">talk</span></a>)</li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Hic_et_nunc" title="User:Hic et nunc">Hic et nunc</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Hic_et_nunc" title="User talk:Hic et nunc"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:Knapsack_Zigarrenbunker_01.jpg" title="File:Knapsack Zigarrenbunker 01.jpg">Knapsack_Zigarrenbunker_01.jpg</a></li></ul>