This City-Data image is more interesting than the usual ones. I found it especially remarkable that almost 20% of the Pennsylvania population has German first ancestry.
I can't find anywhere an example of what this is. There are apparently thousands of these, for different names, and they are physical products. But what is a name sudoku?
Here's a unique one! I found the logo in Google Images, then clicked on to the source, Facebook, and this was the page's banner image.
