This image shows a black and white animal set on a white background, inviting viewers to note if they see a cat or a mouse first. The optical illusion asks viewers to note which animal within the ...

An optical illusion shared on Facebook challenged viewers to count hidden faces in a black-and-white silhouette.

(Rhythm Rathi/CBC) Ji Hyang Ryu said it took her about two weeks — and two litres of black paint — to turn the white walls into an artistic illusion. She said it was her first time working on ...

(Rhythm Rathi/CBC) Ji Hyang Ryu said it took her about two weeks — and two litres of black paint — to turn the white walls into an artistic illusion. She said it was her first time working on such a ...