Escher-montage
Kopfinger
Monastery from Escher's artwork "Ascending and Descending" is used in this photo montage.
Artist's deviantART profile http://kopfinger.deviantart.com
Escher Zum Mitnehmen
Impossible triangle
Images were found at
- http://kopfinger.deviantart.com/art/quot-Escher-zum-Mitnehmen-quot-197560062
- http://kopfinger.deviantart.com/art/Impossible-Triangle-264921307
Image with impossible triangle is based on photo by Rebecca Frampton (rifka1).