There are many. For example, there is a LV in her eyes, and someone saw another portrait of Mona Lisa from the enlarged Mona Lisa. However, these things have not been confirmed, and more are media hype and guesses, which are not scientific, but just rumors.

Leonardo da Vinci is a mysterious man, and his works have always given people a sense of mystery and left people with infinite reverie. Whether it is The Last Supper or Mona Lisa, we are always exploring the mystery and trying to solve some doubts. When we tried to enlarge the Mona Lisa 2 times, we found something amazing in her eyes. No one knows what LV in her eyes represents, but people only know that there are many unsolved mysteries in this painting.

When the experts enlarged the painting, they even discovered the secret of Mona Lisa's eyebrows. The secret is that it was not that Da Vinci didn't draw eyebrows, but that the eyebrows were oxidized and faded with age. Because when the Mona Lisa was scanned with high technology, not only the traces of eyebrows were found, but also the second Mona Lisa was found. This Mona Lisa looks more gentle and graceful, and her hair style is different. Show everyone a completely different feeling.

With the in-depth study of this painting by experts, people have discovered as many as 25 secrets about the Mona Lisa. Some of these secrets can be explained scientifically, while others can't be explained by science so far. I believe that in the future, with the development of science and technology, more and more puzzles will be solved in the Mona Lisa painting, and then everyone can see more magic of Leonardo da Vinci.