Merlino Mayo (immersiva)
This model of Escher's Waterfall is a single rendered frame from the virtual computer world Second Life. There are another impossible figures, which were created in Second Life.
The place with Waterfall is located at http://slurl.com/secondlife/Adpocalypse/125/241/302
Artist's Flickr profile http://www.flickr.com/photos/immersiva/
The image was found at http://www.flickr.com/photos/immersiva/3428113883/