<a href="https://en.wikipedia.org/wiki/Holman_Field_Administration_Building" class="extiw" title="en:Holman Field Administration Building">Holman Field Administration Building</a>, St Paul, Minnesota, USA.  Taken during an open house event.
<a href="//commons.wikimedia.org/wiki/User:McGhiever" title="User:McGhiever">McGhiever</a>
<span class="int-own-work" lang="en">Own work</span>