Alcatraz lighthouse, as photographed from ground level, Yerba Buena island in the background
<a href="//commons.wikimedia.org/wiki/User:Jaredzimmerman_(WMF)" title="User:Jaredzimmerman (WMF)">Jaredzimmerman (WMF)</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>