Town of Bobbio may help redefine Mona Lisa

Research by Carla Glori seems to point to the norhtern Italian town of Bobbio as the backdrop for Leonard da Vinci's painting of Mona Lisa. Glori also believes that Bianca Giovanna Sforza is the real subject of the painting.

"The twisting road from the painting can be found there, as is the arched bridge that Da Vinci would have seen from the windows of the town's castle," said Glori, who is due to publish her findings about the Renaissance painting this year. Ludovico Sforza, the 15th century duke of Milan, controlled the town and was the father of Bianca.