It turns out that the pulsations is caused by color assimilation, and the wiggling happens due to “ambiguous figure-ground segregation” (whatever this means), as Peter van der Helm discusses in his paper (2007).

Here’s another example incorporating a back wall to the artwork. Sure he could have stretched the piece over a long space of sidewalk to play with our perception, but by creating this ad for Celebrity Cruises with a back wall, the drawing looks right no mater what angle you view it from.

Of course, he doesn’t incorporate backdrops into artworks that don’t need them. In fact, adding a background to this reflecting pool illusion might actually distract from the amazing likeness of the actors portrayed in the sidewalk.

If you need further proof that Wenner is certainly one of the masters of his craft, consider the fact that he was the first 3D chalk artist to conceive of an interactive chalk drawing as seen in this photograph from 1987.

Zip-lining across a city street can be fun, but it’s nothing compared to flying across wild terrain. For those that don’t have the time or money to get away from it all though, Wenner offers a grand compromise with this gorgeous canyon advertising the beauty of wild British Columbia.

For more great works by Kurt Warner, don’t miss this piece in the Telegraph, or just visit his website.

That’s because the artist’s surreal creations convert ordinary rooms into mind-melding creations that seem impossible to walk on…of course, with art this fantastic, it seems a shame to trod on it anyway! But the most impressive part is how Heike does it…

From gentle, sea-like blue waves to red wobbling carpets that look even stranger when reflected in the mirror, Miss Weber’s creations turn something as simple as walking through a museum into a mind-altering experience.

Perhaps just as impressive as the actual outcome though, is the way in which Weber actually creates her masterpieces -one line at a time. That’s right, each of these massive installations were created with nothing more than a colored permanent marker and the steady hand of the artist. Imagine how time consuming these projects are, as some of the rooms used in her installations have measured almost 2,000 square feet in size. That’s a whole lot of markers and even more hand cramps.

Even so, the results are no doubt worth the hard work, as the flowing flooring really makes us stop and think about the ground we are walking upon. And isn’t the entire point of art to get the viewer to think?

Kim Kardashian wearing Alexander McQueen's "Optical Illusion dress"

We all know that women prefer clothes which makes them look thin, emphasize their curves and enhance their figure. Spanx pantyhose, Wonderbras… You name it! But come on, no dress is really gonna take ten inches off your waist, or make you look twenty pounds lighter than you really are… Would it? Well, no ORDINARY dress would be able to do that!

But when designers discover fabulous world of optical illusions, and then start playing with such concepts, you’d be amazed what they could do to the female figure… only sky is the limit!

Take the dress on the right for example – simply by adding a well-known optical illusion pattern to the waist, the designer Alexander McQueen suddenly makes any woman wearing his dress appear much thinner in waist than she really is. Not to mention how he successfully reversed the effect in the breasts region, accomplishing curvaceous, hourglass appearance!

Really?! Who Else Does This?

The next dress by Stella McCartney is another extreme example of what optical illusions can do to a woman’s body… Sure, it’s an easy task to emphasize Kim Kardashian’s curves, but what if you’re not as curvaceous?

Using a similar concept that slimmed down Kim in the first image, McCartney’s dress takes the illusion even further – By using a slightly off-white color fabric on the bust, the “shadow effect” makes woman’s breasts appear much larger, immediately putting them in the spotlight (something I’m sure most gentlemen wouldn’t be eager to complain about). But that’s not the only enhancement here!

Kate Winslet premiered Stella McCartney’s dress at the Venice Film Festival, and it was so noticeably figure-altering that it was quickly dubbed “The Optical Illusion Dress” by the press. You can immediately recognize the black-fabric-on-the-sides trick, one that made Kate look like a corset model from the 18th century. An hourglass figure so slim, that when compared to her mortal anatomy, it’s actually shocking…

So remember, optical illusions aren’t just theoretical creations used by artists. No, they are also quite practical when applied to real world settings by fashion designers who want to please their clientele by giving them an entirely new figure. Here are few more celebs wearing Stella McCartney’s dresses. Has it worked for all of them? You be the judge!

Deep in the forest, where heavy feet sink,
you mightn’t be quite as alone as you think!

So what does all of this have to do with our latest optical illusion, you ask? Not much except visual similarity, I guess. I just thought it would be cool to mention ninjas and shurikens in the paragraph above. Ok, now let me explain how the illusion works – If you concentrate on the central dot in the animation below, after seeing the first frame consisting of two overlapped colored objects, you get the impression next two frames are showcasing isolated objects filled with appropriate fluorescent color! In reality, all frames except first lack color, and what you perceive as color afterwards is just an afterimage burnt in your retina! Don’t worry though, it only lasts couple of seconds…

Concentrate on the black central dot, and see the colors magically appear!

For their front cover design (scroll further down), a photograph of the group traversing a zebra crossing, the photographer Iain Macmillan was given only ten minutes to take the photo whilst he stood on a step-ladder and a policeman held up the traffic. In the scene, the group walk across the street in single file from left to right, with Lennon leading, followed by Starr, McCartney, and Harrison. McCartney is barefoot.

It might be interesting to mention how to the left of the picture (parked next to the zebra crossing) is a white Volkswagen Beetle motor-car which belonged to one of the people living in the block of flats across from the recording studio. After the album was released, the number plate (LMW 281F) was stolen repeatedly from the car. The crossing is also a very popular destination for Beatles fans and there is even a webcam featuring it!