Entrance to “Hitler’s Eye” tunnel near <a href="https://en.wikipedia.org/wiki/%C5%A0ibenik" class="extiw" title="en:Šibenik">Šibenik</a> (<a href="https://en.wikipedia.org/wiki/Croatia" class="extiw" title="en:Croatia">Croatia</a>). The tunnel was built into the coast rock of <a href="https://en.wikipedia.org/wiki/Adriatic_Sea" class="extiw" title="en:Adriatic Sea">Adriatic Sea</a> during <a href="https://en.wikipedia.org/wiki/World_War_II" class="extiw" title="en:World War II">World War II</a>. It served as a shelter for German warships.
<a href="//commons.wikimedia.org/w/index.php?title=User:Maasaak&amp;action=edit&amp;redlink=1" class="new" title="User:Maasaak (page does not exist)">Maasaak</a>
<span class="int-own-work" lang="en">Own work</span>