Water tower of <a href="https://en.wikipedia.org/wiki/Elmshorn" class="extiw" title="en:Elmshorn">Elmshorn</a> (German city)
<a href="//commons.wikimedia.org/wiki/User:Frumpy" title="User:Frumpy">Frumpy</a>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>