... is for Mudflaps.

I guess the winters are long in the Midwest, and you've got to think of something to do. Which would explain all of the "World's Largest ____s" that you can find. World's Largest Rocking Chair, or Ball of Twine, or Hairball. Or, in this instance, the World's Largest M.

There I was, driving along and mostly minding my own business, when I happened upon The World's Largest M. Naturally, I had to check it out.

A giant M on the hillside. And an explanatory plaque. And a cement bench, engraved with an M. And a staircase beside it, so you could climb up the hill and view the countryside from each of the three platforms. (Each stair had a numbered plaque on it, so you'd know that it took 279 steps to get to the top. 279 steps of inconsistent width. And pretty much in a straight line.) And there was a telescope at the top.

I especially enjoyed the plaque which explained that the M was in honor of the University of Wisconsin's College of Engineering.