There have been quite some large images been produced and published. But this 150 Gigapixel panorama of Tokio definitely stands out with its amazing detail and technical perfection. I have yet to find a significant stitching error. Captured from the top of the Tokyo Tower it is 600,000 pixels wide and allows to zoom into an amazingly detailed Tokio frozen in time. So detailed that wired even created a photo essay with it.
Make sure to use a WebGL capable browser for a smooth performance.
Here is a video with a “fly through” of the image.