In homage to Prof. Stephen Hawking. 8 January 1942 – 14 March 2018

Watch out—if you aren’t careful, you might fall through this giant hole in the floor! Well, not quite, but the optical illusion rugs of designer Scott Jarvie will make you think so. Calling the project Void Rug, the unconventional decor is relatively simple in design—consisting of just two colors—yet very visually effective. They're convincing enough to make you think there’s a bottomless crater in the middle of your home.Enjoying the illusion of Void Rug is all about standing at the right angle. Both floor coverings are best enjoyed when you’ve got some distance from them; it makes the sliver of gray look as though it’s really the edge of a deep black hole. If you’re standing on top of the rug, it loses the fantastical effect, but the abstract shapes still add some visual excitement to your space.
The contemporary rugs come in two sizes— there is a circular version that’s designed for large spaces as well as a long rectangle that’s meant as a runner for narrow areas like hallways. Via mymodernmet

Click picture for a surprise!

A picture of a strawberry tart has got the internet talking, because whilst it might look reasonably normal, things aren't quite as they seem.
At first glance it looks like a poorly taken photo, or maybe one with far too many filters on it.

But what is actually in front of you is a picture with absolutely no red pixels.

The red colour of the strawberries is merely your mind playing tricks on you because of the blue background.
Things look different under, for example, fluorescent office lighting than they do in softer, lounge lighting so our brain makes an adjustment to make sure that we still see strawberries as red, regardless of where we're eating them.
Source - BBC

Why don't you visit our Oleg Shulyak gallery.

Believe it or not but both the green and the blue colors in this design are actually the same color.

How many faces do you see and which ones are at the front and which ones are at the back ?
Source unknown 

This basalt sea-cliff on the island of Heimaey in Southern Iceland looks just like a giant elephant or wooly mammoth dipping its trunk into the sea.
Heimaey is the largest island in the Vestmannaeyjar archipelago, which is a geologically young set of islands formed by volcanoes. Eldfell, a volcano on Heimaey, erupted in 1973, prompting locals to pump cold seawater onto the resulting lava flows in a successful attempt to redirect it from their harbor. The elephant on this island’s coast that attracts visitors is also formed from the volcanic basalt found everywhere on this island. Source: BoredPanda

A few strange things going on here. Sit back in your seat so you are not too close to the screen. Then look directly at the center green square. Firstly the sides of the different squares start to deform, secondly a ghostly circle appears around the green square. And, by the way, which green square is the biggest?

Hover to invert

Stare intently at the center of the left hand circle for 30 seconds and then look at the right hand circle.

This great photo by Dennis Hodges gives an illusionary look at the buildings of Manhattan. It takes a short while to get your head around the perspective but eventually it can be seen correctly.

I'm not sure what is going on here. If click onit and make it larger I can see moving lines and changing colors. How about you? Source unknown