<i>Monument to <a href="//commons.wikimedia.org/wiki/Max_Planck" title="Max Planck">Max Planck</a></i> by <a href="//commons.wikimedia.org/wiki/Bernhard_Heiliger" title="Bernhard Heiliger">Bernhard Heiliger</a> (1948-49), in the yard of <a href="//commons.wikimedia.org/wiki/Humboldt-Universit%C3%A4t_Berlin" title="Humboldt-Universität Berlin">Humboldt-Universität Berlin</a>
<a href="//commons.wikimedia.org/wiki/User:Mutter_Erde" title="User:Mutter Erde">Mutter Erde</a>
Attribution
<span class="int-own-work" lang="en">Own work</span>