An unused station on the <a href="https://en.wikipedia.org/wiki/Chicago_%27L%27" class="extiw" title="w:Chicago 'L'">Chicago 'L'</a> system
Sean Lamb (<a href="//commons.wikimedia.org/wiki/User:Slambo" title="User:Slambo">Slambo</a>)
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>