In this ambiguous painting by Rob Gonsalves, a young girl is having fun on a tree swing.  As she gets higher and higher, it seems that her feet might touch the moon.  Moving from left to right, can you see where the painting transitions from the girl swinging from a tree under the moonlight to the point where she appears to be floating in space?

(via Huckleberry Fine Art)

The works of Tamás Farkas have been presented in exhibitions around the globe.  His art has appeared in his native country Hungary, as well as other places like Washington, D.C., Israel, Japan, and Italy (to name a few).  Take a look at the tangled gray and gold figures below.  They appear to be wrapped around one another in a series of “knots”.  But if you follow either one of the lines, you will find that there is no way that they could physically bend and twist the way they do.  The entire figure is quite impossible.

(via Tamás F. Farkas)

This painting by Russian artist Victor Molev shows a collection of papers (some whole and some torn) in the foreground and a sailing ship in the background.  The papers in the center of the image come together in such a way that they form a hidden portrait of Vladimir Vysotzkiy, a Russian singer-songwriter, poet, and actor.  His song lyrics featured commentary about social and political issues that left an lasting impression on Russian culture long after his death in 1980.

(via Victor Molev)

This painting from Mexican artist Octavio Ocampo effectively uses negative space to create two distinct images that occupy the same space.  Do you see a tree and several birds or do you see the face of a woman?  You cannot view them both at the same time, but you can very easily flip-flop between the two interpretations.

For me personally, the first thing that I notice when viewing this painting is the woman’s face.  I have to focus on the tree on the left side of the painting in order to not see the her face.  Try using your hand to cover up the two birds at the bottom (representing the girl’s nose and mouth) and then all you will notice is the tree and bird at the top.

(via Visions Fine Art)

The impossible triangle (also known as the Penrose triangle) has intrigued viewers (and artists) since it was first introduced by Oscar Reutersvärd in the 1930s.  In the photograph below, street artist Femoesa designed this version of the impossible triangle using a chain link fence.  This particular impossible work of art was created in 2013 in the Netherlands in a city named Delft.

(via Femoesa)

If you suffer from motion sickness, now might be a really good time to get out your Dramamine.  As your eyes move across this series of nine distorted circular objects, you may notice that they start to move or pulsate.  It almost looks as if the circles are made of wax and are somehow melting and becoming more distorted.

(via Kaia Nao)