Marc Böttler arranged wooden blocks so that, when viewed from just the right angle, they revealed letters of the English alphabet. Take a look at the other letters at the link. Link -via Colossal...

It doesn't look like it, but the girl in the i...  ...d counterintuitive visual results. There are more illusions with full explanations in Scientific American's "...

(YouTube link) The illusion comprises a morphing sequence between two faces. The observer has to fixate a dot superimposed on the morph. When the dot is moving, morphing can hardly be seen. However, when the dot suddenl...

This work of work of art, according to Neatoramanaut chriskayTO, can be found in a subway station in Toronto. Examined from the correct angle, it looks like a staircase. Link via Geekosystem...

American psychologist Joseph Jastrow published...  ...merican psychologist Joseph Jastrow published the optical illusion on the right in 1899. He used it to exp...

Perception of color by the human eye is surpri...  ...larity in the situation on the left. These two illusions are samples from a set of 26 assembled at Scienti...  ...of 26 assembled at Scientific American for their Illusions : Colors Out of Space slideshow. Link.

We've previously featured the amazing optical illusions of Edgar Müller. Pictured above is a concrete p...

It looks like a door opening in a concrete wal...  ...t mirror designed by Sarah Dayo that creates that optical illusion. She writes: Sometimes we cannot hel...

The short answer is that our brains are programmed...  ...scover magazine, as well as a gallery of colorful optical illusions . For example, these two Rubik's cubes do NOT have...