Optical Illusion – Impossible Object With a Twist

If one looks closely at the construction of this figure, it quickly becomes apparent that something is just, well…wrong with it. 

This initially-baffling video exhibits how the human visual system can subconsciously interpret and thoroughly "see" a three-dimensional object even though it is impossible for such an object to exist.  Thankfully, the creator reveals how it was constructed.

From the Upcoming ueue, submitted by flagler.