The "sawtooth" pattern present in the mountain range was one illuminating factor for Pizzorusso's theory.
Mandatory Credit:	VCG Wilson/Corbis/Getty Images via CNN Newsource

The "sawtooth" pattern present in the mountain range was one illuminating factor for Pizzorusso's theory.
Mandatory Credit: VCG Wilson/Corbis/Getty Images via CNN Newsource

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The Mona Lisa was set in this surprising Italian town, geologist claims

Leonardo da Vinci’s Mona Lisa — one of the most famous paintings in the world — is shrouded in mystery; from questions around the figures identity, to her puzzling, enigmatic expression. Now, at least one of the artwork’s secrets has been revealed, according to a geologist based in Italy.