Google is a bit (in)famous for their April 1st pranks. Here are some funny Google maps from back before it got the buzz-killy new directions of “Sorry, we could not calculate directions from Chicago, IL to United Kingdom” (I bet their lawyers were like “stop all of your funny business right now.” This guess is based on some recent vicarious contact with tech industry lawyers.):
And sometimes you can just find funny errors or bugs in the map: