Everyone's heard about North Korea, the hermit kingdom that hangs off the east coast of China.

Condoleezza Rice called it an "outpost of tyranny." George W. Bush said it was one-third of the "axis of evil." And now James Franco and Seth Rogen have a comedy about it, much to Pyongyang's disapproval.

Despite all of that, we really don't know that much about North Korea. But what we do know is rather mindblowing.