Van Gogh - Starry Night
"This image is a photomosaic of the famous painting 'Starry Night'. The image is made with over 210.000 tiny photographs and a total size of over 1.500.000.000 points in other words it is a 1.5 Gigapixel Image. Click over the image (Zoom In) until you start to see the tiny images."
Neat effect, achieved with previously mentioned Flash doodad Zoomify.
Van Gogh - Starry Night