Check out this Tiger mosaic image comprising of hundreds of photos of the many threatened habitats and species around the world. This has been made using Deep Zoom technology.
Please go to http://www.fauna-flora.org/tiger_mosaic.php for the amazing experience. Click and roll your mouse to zoom in or move around the images easily, or use the tool bar.
(Source: @shanselman )
EDIT: Thanks to Steve Clayton , here’s a small video clip of it, but to experience it yourself , please check the above link.