They’re called “reverspectives” and they contradict the entire history of how art has traditionally been seen. Rather than looking at a piece from one direction, straight ahead, this piece is built so that you get a different picture as you walk in front of it. It can be a bit hard to explain but seeing is believing so taking a look at the above video should make it clear.
And here are some stills of each viewpoint so you can really see what you’re looking at. Basically, instead of trying to create the effect of a 3-D object on a 2-D space, twin sisters Sepideh and Saediah Omidghaemi along with classmate Chido Munjanganja have created three dimensional art by painting two dimensional images on three dimensional objects. The effect is very cool.