A <a href="https://en.wikipedia.org/wiki/Chicago_%27L%27" class="extiw" title="en:Chicago 'L'">Chicago 'L'</a> train in the northeast corner of the Loop.  This is a <a href="https://en.wikipedia.org/wiki/5000_series_(Chicago_%27L%27)" class="extiw" title="en:5000 series (Chicago 'L')">5000 series</a> <a href="https://en.wikipedia.org/wiki/Pink_Line_(Chicago_Transit_Authority)" class="extiw" title="en:Pink Line (Chicago Transit Authority)">Pink Line</a> train as it approaches the <a href="https://en.wikipedia.org/wiki/Randolph/Wabash_(CTA_station)" class="extiw" title="en:Randolph/Wabash (CTA station)">Randolph/Wabash station</a>.
<a href="//commons.wikimedia.org/wiki/User:DR04" title="User:DR04">DR04</a>
Attribution
<span class="int-own-work" lang="en">Own work</span>