A US teacher created these astonishing artworks on a classroom whiteboard - during his 25-minute lunch break.

Gregory Euclide started the project to show his pupils, in the Minnesota River Valley, what could be achieved in a short period of time. He used Japanese Sumi ink, whiteboard erasers, paper towels, spray bottles, brushes and other objects he found lying around the classroom. He said: “In our culture, there is a strong emphasis on reproduction and the original seems less important. “My students were shocked when I would erase the original, because they saw it firsthand, and they were disturbed that it was destroyed.                             –WO