"Rubin Vase. This is one of the most famous optical illusions that exists. There are two things that you can see in this image ... In black you can see two faces looking directly at one another. In white, you can see an interesting curved vase."
Faces ... illusion. Source unknown. More
Scary Optical Illusions...a few of these are awesome!
Artist Transforms Her Arms Into Trippy Optical Illusions
An Optical Illusion faces that are upside down and turn it around and it is another face.
Optical Illusion (@Way_Things_Work) on Twitter
Face Paint Optical Illusion | Mighty Optical Illusions
Optical illusion www.awakening-intuition.com #Optical #Illusions #ShermanFinancialGroup
A photo posted by Lisha (@lishaajasminee_bodyart) on Apr 8, 2016 at 11:07pm PDT Canberra, Australia face painter and body artist Lisha Simpson has created all sorts of incredible optical illusions …
The Gunfighter Optical Illusion - http://www.moillusions.com/gunfighter-optical-illusion/