Megan Singleton: Peeling back the layers of the Mona Lisa - The Sunday Session with Francesca Rudkin

This week Megan Singleton talks about an online exhibit from the Louvre, which you can visit from the comfort of your home.
Historians and artists at the Louvre have x-rayed and scanned the Mona Lisa - painted on poplar wood, not canvas - and revealed Leonardo da Vinci's painting techniques. 
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