Painting of Design Futura group on <a href="https://en.wikipedia.org/wiki/Piotrkowska_Street" class="extiw" title="en:Piotrkowska Street">Piotrkowska Street</a> in <a href="//commons.wikimedia.org/wiki/%C5%81%C3%B3d%C5%BA" title="Łódź">Łódź</a>
<a href="//commons.wikimedia.org/wiki/User:Sicherlich" title="User:Sicherlich">Ralf Lotys</a> (Sicherlich)
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>