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

Under the painting of a Spanish sculptor is the outline of a woman, according to new infrared images. The artwork will be displayed in London.

Conservators at the Courtauld Institute of Art in London revealed a hidden portrait beneath Pablo Picasso's 1901 painting "Portrait of Mateu Fernández de Soto," adding a new layer of complexity to one of the artist's Blue Period iconic works.

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

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.

Art historians studying a Picasso painting uncovered the mysterious portrait of a woman hidden beneath the painting’s surface. The portrait of the woman was lost in 1901, when Picasso painted a portrait of his sculptor friend Mateu Fernández De Soto over the original.