Fascinating stuff - the Peters Projection Map of the World, which is area accurate:

Which is bigger, Greenland or China? With the traditional Mercator map (circa 1569, and still in use in many schoolrooms and boardrooms today), Greenland and China look the same size. But in reality China is almost 4 times larger! In response to such discrepancies, Dr. Arno Peters created a new world map that dramatically improves the accuracy of how we see the Earth.

Very cool, and a real mind-blower too. (Via rc3.)