The Mona Lisa may have had eyebrows. The famous portrait may look relatively facial hair-less, but in October 2007, Pascal Cotte claimed that Leonardo da Vinci originally painted eyebrows and eyelashes on the Mona Lisa. Using a high-definition camera, the French engineer and inventor zoomed in 24 times on Mona Lisa’s face and found a single brushstroke of hair. However, whether or not this is true is one of the many mysteries of the Mona Lisa.