Mona Lisa is a 16th century oil painting on a poplar wood panel, created by the renowned Italian artist Leonardo da Vinci. It is one of the most famous and iconic works of art in the world, and is housed in the Louvre Museum in Paris, France.
From Wikipedia
The 16th-century portrait Mona Lisa, or La Gioconda, painted in oil on a poplar panel by Leonardo da Vinci, has been the subject of a considerable deal of speculation.