When Leonardo returned to Florence in the early 1500s, he immediately made his presence felt. Giorgio Vasari recounts how a Leonardo cartoon was put on display in the church of Santissima Annunziata and how great crowds “would gaze in amazement at the marvels he had created.” Shortly thereafter, Leonardo received the commission for his most famous work, a portrait of Mona Lisa del Giocondo – better known to the world as the Mona Lisa.