Natural Resources
While a country cannot succeed in the long run with the majority of their GDP coming from non-renewable resources it can certainly create an imense amount of wealth in the short term. Look at the MIDDLE EAST. A hundred years ago it was primarily a dessert with some nomadic tribes and now it's pumping out the majority of the worlds oil and swimming in US dollars. While unsustainable, it looks pretty fun in the short term. Well, enough banter...here's a great visual of the world natural resources: both non and renewable resources.
http://www.mint.com/blog/uncategorized/mint-map-the-worlds-resources-by-country/
