Gapminder is a product/website which promotes a fact based world view by unveiling the beauty of statistics.
Even if your not interested in their database this will make messing around with numbers and maps fun.
Gapminder describes itself as “unveiling the beauty of statistics for a fact based world view.
Hans Rosling, the founder, is a frequent speaker at TED Talks and his presentations make numbers swoop and swirl as economies grow, diseases are controlled, and trends emerge. .
His presentations can change your perception of statistics. Here's a ted video.