One of the best I’ve seen is Al-Jazeera’s interactive visualizations that were produced from the Iraq War logs (http://english.aljazeera.net/secretiraqfiles/2010/10/20101022172059236587.html).
In five minutes you can actually see more than 55,000 IED incidents, their locations, how many people died and who they were. I can’t think of any other way that data could have been presented without just being another war story.
My inspiration when thinking of visualizations has come from http://www.informationisbeautiful.net/ – It’s probably one of the more interesting collections of data presentation on the net.