28-06-2018 
Visite Grande Synthe Puythouck et Vergers
<a href="//commons.wikimedia.org/wiki/User:Cerema_NP_EEBP" title="User:Cerema NP EEBP">Cerema NP EEBP</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>