Slate garden wall, <a href="https://en.wikipedia.org/wiki/Blackwell_(historic_house)" class="extiw" title="w:Blackwell (historic house)">Blackwell House</a>, England
<a rel="nofollow" class="external text" href="https://www.geograph.org.uk/profile/9419">John Salmon</a>
CC BY-SA 2.0
From <a rel="nofollow" class="external text" href="https://www.geograph.org.uk/photo/930728">geograph.org.uk</a>