Amazing
There are two things to see here. First is the vast extent of the devastation in Japan. Second is the technology used to present this. It happened just a few days ago. Run your cursor from the extreme right side of the screen and slide it across each photo, right to left. It peels back the "before" photo to show the "after" photo of the same scene.
http://www.abc.net.au/news/events/japan-quake-2011/beforeafter.htm