Leonardo da Vinci Paintings, Bio, Ideas
Mona Lisa modeled on a male: researcher
What does Mona Lisa's smile represent? - Quora
X-rays of the Mona Lisa reveal new secret about Leonardo da
Mind-blowing secrets in famous paintings – including 'hidden
Mona Lisa's eyes may reveal model's identity, expert claims
The Mona Lisa as the Portrait of Lisa del Giocondo described by Vasari
Mona Lisa model was male, researchers say - ABC News
Who posed for Leonardo da Vinci's Mona Lisa?