Ecce Homo, a painting by Italian Renaissance master Titian, has been found to be hiding a mysterious portrait of an unknown ...

A surreal venture followed, as Classen and Lepka found depictions of faces in their everyday belongings ... spending time as digital writer – specialising in art, technology and contemporary culture – ...

Optical illusions are a fascinating mix of art and science ... You have to find two hidden faces within the image. But here's the twist: you get only 5 seconds for it! On the surface, it might ...

The challenge tests your ability to observe carefully and sharpen your perception as you search for the concealed face within the artwork. Here is a clue: to see the hidden face, turn the picture ...