Saudi Arabia's economy is petroleum-based.
Oil accounts for 90% of the country's exports and nearly 75% of the government's revenues.
Geographers use map projections to translate the planet in a two dimensional representation. Unfortunately, you can’t display 3D surfaces perfectly in two dimensions, distortions always occur. There are many different projections that are commonly used throughout the world.
The Panama Canal because it makes the most money and is the most important out of all the four.
The real question is...can a box match?