rebuildt Trench inside the Dome of Helfaut, Helfaut, Département of Pas-de-Calais, Region of Upper France (former Nord-Pas-de-Calais), France
<a href="//commons.wikimedia.org/wiki/User:Zairon" title="User:Zairon">Zairon</a>
<span class="int-own-work" lang="en">Own work</span>