The digital production house squint/opera decided to get into the Christmas spirit by painting a giant anamorphic Christmas tree (complete with red bulb decorations and a gold star on the top) across its office space. This photograph, taken from another angle, helps to demonstrate how they had to paint the tree in order to get […]

In the spirit of the holiday season, today’s optical illusion features a series of red and white candy canes.  When you look at these seven pieces of candy, do they appear to be parallel to one another or are they askew?  If you want to be certain, grab something with a straight edge and hold […]

To all of those who celebrate Christmas today… Merry Christmas!  Today’s image is a stereogram from Gene Levine.  While you can probably already figure out what it says, stare directly at it and the hidden three-dimensional message will emerge from the pattern and reveal itself.  If you have trouble seeing this stereogram, you can always […]

Mathematical vision scientists Hitoshi Arai and Shinobu Arai created this unique wreath image in 2011.  If you focus your eyes on the red dot in the center of the wreath and move your head toward your monitor and then away from it repeatedly, you will notice that outer portion of the wreath appears to move […]

A family opens their front door on Christmas morning only to be frightened by what they see.  But should they be?  What is so scary about this Santa Claus illustration by Russian cartoonist Valentine Dubinin?