Another great web piece by the New York Times. The other two I know of are Snow Fall [1] and the Riding the New Silk Road [2].
1 - http://www.nytimes.com/projects/2012/snow-fall/
2 - http://www.nytimes.com/newsgraphics/2013/07/21/silk-road/
1 - http://www.nytimes.com/projects/2012/snow-fall/
2 - http://www.nytimes.com/newsgraphics/2013/07/21/silk-road/
http://source.mozillaopennews.org/en-US/articles/how-we-made...
See also: http://www.interactivenarratives.org