Here is a cool data visualization article on the people of the world and where they are all located!
http://www.fastcoexist.com/1678927/a-map-of-where-all-7-billion-humans-are-cramming-together
"It’s just another reminder that while we fret about things like suburban sprawl, congestion, and pollution, solutions to these problems can’t just be focused on the West. Most of the people are on the other side of the world."
It's always interesting to see data sprawled out on maps.