An animated data-driven documentary about war and peace, The Fallen of World War II looks at the human cost of the second World War and sizes up the numbers to other wars in history, including trends in recent conflicts.
For the interactive version : http://www.fallen.io/ww2/
I think it's a pretty neat and objective way to visualize the casualties (both civilian and military) between countries and/or continents but also relatively to the most deadly conflicts/atrocities humanity experienced. There are things to be said about numbers (regarding the Russians deaths but also some countries that are not appearing) or the terminologies (how the narrator talk about the Germans as "Nazis" which is wrong because most soldiers weren't). But it would be impossible for that kinda work to be exhaustive imo so I won't nitpick about that personally.
That Russian and Chinese blood man 





at the soviets