Most people know these 10 über famous paintings. However, something tells me you didn't know these surprising facts about them. Check them out, and get a whole semester's worth of art history in just one sitting. 1.) The Mona Lisa. Wikipedia Despite the popularity of Leonardo da Vinci's master work, the subject of the Mona Lisa portrait is still unknown. Researchers believe it's likely a woman named Lisa Gherardini. She was a member of a wealthy Florentine family. Allegedly, Leonard da Vinci's father was friends with Gherardini's father. Experts believe he may have commissioned the painting. 2.) The Last Supper....