'Felgueiras' Light. Head Light of the 'Felgueiras' Pier. North pier of River 'Douro' mouth, at Oporto, Portugal
<a href="//commons.wikimedia.org/wiki/User:JotaCartas" title="User:JotaCartas">JotaCartas</a>
CC BY 3.0
<span class="int-own-work" lang="en">Own work</span>