photo of a close-up view of an old farmhouse with a barn of wave-plate, very popular material in the 1960/70's to built barns in a cheap way. region Midden-Drenthe in The Netherlands, spring of 2012
<a href="//commons.wikimedia.org/wiki/User:FotoDutch" title="User:FotoDutch">FotoDutch</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>