Stieleiche (tree as natural monument) at graveyard of <a href="https://de.wikipedia.org/wiki/Ernst_Moritz_Arndt" class="extiw" title="de:Ernst Moritz Arndt">Ernst Moritz Arndt</a>, Bonn, Germany (Alter Friedhof)
<a href="//commons.wikimedia.org/wiki/User:Sir_James" title="User:Sir James">Sir James</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>