The Gross Domestic Product (GDP) of the United States is about $16 trillion.

Just how big a number is that?

The below map, from American Enterprise Institute scholar and University of Michigan-Flint professor Mark Perry, sums it up about as well as we ever could. Perry has likened each of the 50 states to a country with a GDP of about the same size.

And no, they aren't a bunch of countries you've never heard of. Texas's economy is basically as big as an entire continent -- Australia -- while California is comparable to Italy and New York is on-par with Mexico.

Also, for you D.C. residents out there, the economy of your 61-square-mile city is similar to that of Hungary, whose population is about 10 million.