A <a href="https://en.wikipedia.org/wiki/Wall_poems_in_Leiden" class="extiw" title="en:Wall poems in Leiden">wall poem</a> in <a href="https://en.wikipedia.org/wiki/Leiden" class="extiw" title="en:Leiden">Leiden</a>, the Netherlands, in Dutch, by <a href="https://en.wikipedia.org/wiki/Jan_Arends" class="extiw" title="en:Jan Arends">Jan Arends</a>
<a href="//commons.wikimedia.org/wiki/User:David_Eppstein" class="mw-redirect" title="User:David Eppstein">David Eppstein</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>