Ruins of the SAI Ambrosini Aircraft factory in Passignano-sul-Trasimeno, Umbria, Italy
<a href="//commons.wikimedia.org/wiki/User:Matthias_v.d._Elbe" title="User:Matthias v.d. Elbe">Matthias v.d. Elbe</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>