So this started off as a search for something similar and when I couldn't find it, I made one of my own. I thought I had previously seen a series of maps that divided the world into various numbers of regions. What if you had to group the entire world into only 2 sections; where do you draw the line? How about 5 regions? And so on and so on. Perhaps I was just making things up, as I couldn't find said mythical post. So here's mine:
Here's a link to an imgur album of the same images: http://imgur.com/a/DflY7