One of the art world's most hotly debated mysteries may have finally been solved after 500 years. br Leonardo da Vinci's Mona Lisa is perhaps the most famous painting of all time - it's subtle smile and captivating pose delighting generations of art lovers for the better part of five centuries. br Exactly what emotion the painting's subject is expressing however has long remained something of an enigma. br ------------------------------------------------------------------------------- br So I hope you like this video. br Please Share Our videos on facebook with your friends. br Don't forget to Do like , Subscribe & Comments On Our Video.