Is There a Hidden Drawing Beneath the 'Mona Lisa'?

Newly detailed high-resolution scans show traces of a charcoal underdrawing

Scientist Discovers Hidden Drawing Beneath the 'Mona Lisa' –

French scientist 'discovers hidden portrait' beneath surface of da Vinci's masterpiece 'Mona Lisa' – New York Daily News

Leonardo da Vinci news: Why hidden hairpin could redefine Mona Lisa painting, World, News

A Hidden Drawing Lies Beneath the 'Mona Lisa,' New Ultra-High-Resolution Images Reveal

Scientist Discovers Hidden Drawing Beneath the 'Mona Lisa' –

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

Mona Lisa': Hidden portraits 'found underneath

What are some of the mind blowing hidden secrets about Mona Lisa painting? - Quora

Unveiling Mona Lisa - House of Truth

Original Portrait of the Mona Lisa Found Beneath the Paint Layers of da Vinci's Masterpiece

How Leonardo da Vinci Made Mona Lisa Smile - The Atlantic

I'm Happy and I know it! - Model Branka after Da Vinci & Mona Lisa - Oil Painting - Fine Arts Gallery - Original fine Art Oil Paintings, Watercolor Art, Drawings

Mona Lisa: 'hidden' painting discovered behind the surface

Hidden Portrait Found Under 'Mona Lisa' Painting - ABC News