Hidden portrait 'found under Mona Lisa': French scientist

French scientist Cotte says he has found an image of a portrait underneath the existing Mona Lisa painting using reflective light technology

Meet the real Mona Lisa, born and raised in Florence and follow her steps in a walking tour

Mona Lisa': scientists unlock secret of da Vinci techniques

Mona Lisa': Hidden portraits 'found underneath

Mona Lisa's smile could be a lie, neuroscientists say - CNET

High-Res Image Scan Detects Hidden Drawing Under The 'Mona Lisa

Mona Lisa The Story Behind The Fame, its theft, reasons why it is world famous, and why it is a masterpiece.

Scientist says there is a hidden portrait underneath the Mona Lisa

How Leonardo da Vinci Made Mona Lisa Smile - The Atlantic

Scientists Uncover Another Secret Of Da Vinci's Mysterious'Mona Lisa

Researcher Says Mona Lisa May Be Covering Hidden Painting

Scientist Claim Secret Portrait of 'REAL' Mona Lisa Lies Underneath