Aerial photography: <a href="https://en.wikipedia.org/wiki/Hochdonn_High_Bridge" class="extiw" title="en:Hochdonn High Bridge">Hochdonn High Bridge</a> part of <a href="https://en.wikipedia.org/wiki/Marschbahn" class="extiw" title="en:Marschbahn">Marschbahn</a> traversing the <a href="https://en.wikipedia.org/wiki/Kiel_Canal" class="extiw" title="en:Kiel Canal">Kiel Canal</a>.
<a href="//commons.wikimedia.org/wiki/User:Walter_Rademacher" title="User:Walter Rademacher">Walter Rademacher</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>