The Prado Mona Lisa before and after restoration

Comparison between the Prado Mona Lisa and the Louvre Mona Lisa

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

One, two, three Mona Lisa! - Art-Test

File:Mona Lisa Restored Colour. Based on newly discovered Prado Copy painted by pupil alongside Leonardo..jpg - Wikimedia Commons

Why doesn't the Louvre restore the Mona Lisa to its original colors? - Quora

Remarkable discovery reveals the ¿real¿ face of Mona Lisa

Mona Lisa's 'twin sister' unveiled

Mona Lisa' copy draws crowds at Spain's Prado - The San Diego Union-Tribune

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

What the Mona Lisa Originally Looked Like

The Mona Lisa by Leonardo da Vinci

Left: the copy before the restoration. Middle: the restored copy. Right: the original.

Museum discovers earliest copy of 'Mona Lisa