You've seen those maps where the size of countries or states is distorted larger or smaller according to their population? Here's a US map in which the size of counties are adjusted by the value of the economic output produced in that county. It's one of those useful maps where you see the world in a different way, by Max Galka at the Metrocosm website.
It's also just to look at how the 10 largest US urban areas appear at the end of the animation....MORE
