Color Countries by GDP
Make a world map with countries colored by GDP.
Make a map of just South America:
how it works
This example was live-coded at the Wolfram Research booth at SXSW, March 9, 2014.
Evaluating CountryData without arguments returns a list of countries. Here is that list in abbreviated form:
This makes a map showing each of the countries in that list colored by GDP:
Specify the region to make a plot of a smaller area: