Turnhalle des Alexander-von-Humboldt-Gymnasiums (Seitzhalle Typ 1), Hamburg-Wilstorf.
<a href="//commons.wikimedia.org/wiki/User:Minderbinder" title="User:Minderbinder">Minderbinder</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>