Category: Double Meanings | Date Added: February 23, 2013 | 6 comment(s)
This is an optical illusion of a coiled wire cylinder that looks a bit like a slinky, the popular toy that can walk down stairs by itself. The orientation of the coil changes depending on which way you look at it, can you tell if it is angled towards the left or if it is angled towards the right ?


Image credit: This image is believed to be in the public domain.


Category: Double Meanings | Date Added: February 22, 2013 | 7 comment(s)
In this double meaning optical illusion you can see the outline of a face of a man drawn in white against a black background. When you look more closely the white line turns into a word which becomes more obvious and easier to read if you tilt your head slightly to the right. See if you can spot what the four letter word says.


Image credit: This image is believed to be in the public domain.


Category: Impossible Objects | Date Added: February 21, 2013 | 2 comment(s)
This wonderful example of sidewalk art shows an image of a blue rectangle shape drawn on the side of a brick wall. In this optical illusion you will notice that the rectangle has been drawn in such a way that it gives the illusion of not being straight, thus making it an impossible shape.


Image credit: This image is believed to be in the public domain.


Category: Moving Images | Date Added: February 20, 2013 | 2 comment(s)
Here we have an image showing what looks like two rings of lilac flower petals on a green background. When you look at this picture it gives the very relaxing illusion that the petal rings rotate towards each other.


Image credit: This image is believed to be in the public domain.


Category: Shape and Color | Date Added: February 19, 2013 | 5 comment(s)
This optical illusion image is a row of open taps with blue water flowing down from each one of them. When you look at this picture can you see the blue water lines twist up and down as if they are flowing?


Image credit: This image is believed to be in the public domain.