And the Winner Is …
For several years, Italian sculptor Guido Moretti has donated copies of his Three-Bar Cube and other impossible sculptures as trophies for the Best Illusion of the Year Contest. Depending on your vantage point, Three-Bar Cube can appear to be a cube, a solid structure or an impossible triangle. For more information, see http://illusioncontest.neuralcorrelate.com/trophies.
Artist Brian McKay created a giant version of the impossible triangle in Perth, Australia, in collaboration with architect Ahmad Abas. How did they do that? A photograph taken from another angle reveals the trick.
This article was originally published with the title Sculpting the Impossible: Solid Renditions of Visual Illusions.