Leonardos portrait of Mona Lisa, probably the most famous painting in the world, has been interested by the public for more than 500 years. Only a few paintings are so well known as Da Vincis Mona Lisa and explaining her mysterious smile has proved to be a hard nut to crack. So, in Eagles Meadow shopping center in Wrexham, Wales yesterday, the largest ever Mona Lisa reproduction was put on display, may be to get a different and bigger perspective of her mysterious smile. But on a more serious no