Detail of a Mosaic with 66 donkeys by Manfred Stumpf at Habsburgerallee (Underground station), Frankfurt am Main
<bdi><a href="https://en.wikipedia.org/wiki/en:Manfred_Stumpf" class="extiw" title="w:en:Manfred Stumpf"><span title="German artist">Manfred Stumpf</span></a>
</bdi>
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span> / Photography made by myself