For 10 points, name this Leonardo da Vinci painting of a woman with an enigmatic smile.
Louis Béroud's attempt to sketch this painting for the basis of one of his own led to the discovery of a theft. Next to the right shoulder of this painting's central figure, a small bridge can be seen crossing a meandering river, behind which are icy blue mountains. This painting's artist did not draw outlines around the (*) mouth and eyes, instead using sfumato techniques. This painting's subject, who lacks eyebrows, is generally believed to be Lisa del Giocondo. For 10 points, name this Leonardo da Vinci painting of a woman with an enigmatic smile.
Louis Béroud's attempt to sketch this painting for the basis of one of his own led to the discovery of a theft.
Mona Lisa [accept La Gioconda before “Giocondo” is read] &lt;WA Painting&gt;