Not only is the information about what is really happening in 3rd World health and wealth stunning in this video of a speech by Hans Rosling, the animations illustrating his data are immensely cool. I watched the speech twice just to watch the projections run again. It isn't often that an audience applauds the way data is presented and asks for a replay.
Three times. I just watched it again. (At California Yankee, HT Maggie's Farm.)