LED-lit map of the Toronto subway system, found in the cars of a <a href="https://en.wikipedia.org/wiki/Toronto_Rocket" class="extiw" title="w:Toronto Rocket">Toronto Rocket</a>
<a href="//commons.wikimedia.org/wiki/User:MyCatIsAChonk" title="User:MyCatIsAChonk">MyCatIsAChonk</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>