Check out this time-lapse flyover of the Earth, as seen from the International Space Station.
Very Cool. Notice the city lights and the lightning in the clouds. It appears to me it starts on the US Pacific Northwest coast, heads South along the California coast (Los Angeles is the brightest area), down through Central America, and over the Andes. The only thing I found curious was the pocket of green lights that appears just past the midway point, apparently somewhere in Central America. Any ideas?