Medical imaging specialists Aperio have broken the 4GB file size limit on the TIFF image format by creating their own format called BigTIFF and offering the format into the public domain (an amazing fact in its own right). To showcase the power of BigTIFF image resolution, Aperio has released the first terapixel image.
BigTIFF is an understatement. Even compressed, the image weighs in at 143GB! You can view the image online in a Google Earth like method, but it the website was down when I last tried it.
Source: News.com