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

Nearly 125 years after Pablo Picasso painted one portrait, high-tech imaging tools have revealed a secret — another, earlier portrait concealed beneath.

"Microscopic observations of the craqueleure of the painting allowed us to document the stratigraphy of the canvas and to detect, through the cracks, the existence of different pi

A mystery woman, long concealed beneath a work from Picasso's early Blue Period, has been uncovered by researchers, shedding new light on the artist’s creative process. View on euronews