My friend Patrick was particularly incensed by this chart, from the Economist publication "The World in 2006", which has been discussed here and here. It employs a typical trick to make charts more "entertaining", that is, introducing an extra dimension, region of the world in this case. As the right-side junkart version shows, collapsing this dimension results in a much clearer graph. Disagree? Try figuring out which columns to contrast in the left chart, and you might get dizzy as if reading an Escher "impossible trident" (more Escher goodies here).
Reference: "Wider but not deeper", The World in 2006.