Lock "Hindenburgschleuse" located at Anderten district of Hannover, Germany. View of the western chamber with an entering ship. The image was taken from Lehrter Strasse / B65.
Christian A. Schröder (<a href="//commons.wikimedia.org/wiki/User:ChristianSchd" title="User:ChristianSchd">ChristianSchd</a>)
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>