35 km long Afsluitdijk, the Netherlands
<a href="//commons.wikimedia.org/w/index.php?title=User:Roobit&amp;action=edit&amp;redlink=1" class="new" title="User:Roobit (page does not exist)">Roobit</a> (Eugene Soukharnikov, euge_s@basical.com)
CC BY 2.5
<span class="int-own-work" lang="en">Own work</span>