This photo shows a barracks building with attached furnace at Royal Air Force Bombing &amp; Gunnery School No. 31 at Picton, Ontario, Canada.    The building is abandoned and the B &amp; G School is now the privately held Picton Airport.
<a href="//commons.wikimedia.org/wiki/User:SteveTheAirman" title="User:SteveTheAirman">J. S. (Steve) Bond</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>