Well, here's a recent shot of the Korean peninsula at night. National boundaries are conveniently drawn in.
That one bright spot in North Korea is the capital, Pyongyang. Here's the story:
As the world grapples with how to rein in the "axis of evil" state which this week conducted a nuclear test, this spectacular satellite photo unveiled yesterday by US Defence Secretary Donald Rumsfeld shows in stark detail the haves and have-nots of the Korean peninsula.
The regime in the north is so short of electricity that the whole country is switched off at 9 p.m. - apart from the capital of Pyongyang where dictator Kim Jong-il and his cohorts live in relative luxury. But even there, lighting is drastically reduced.
The result, as shown in this picture taken one night earlier this week, is a startling contrast between the blacked-out north and the south, which is ablaze with light, particularly around major cities and the capital, Seoul, in the north-west of the country.
Mr Rumsfeld showed the picture to illustrate how backward the northern regime really is - and how oppressed its people are. Without electricity there can be none of the appliances that make life easy and that we take for granted, he said.