The Knarrarósviti Lighthouse is a two-staged tower, built in 1938-1939, and was Iceland's first lighthouse built of reinforced concrete.
<a href="//commons.wikimedia.org/wiki/User:Igoldste" title="User:Igoldste">Ira Goldstein</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>