In a well prepared and months in the planning operation Youth Charity Youth Unlimited North York, Toronto has set a new world record for the world’s largest QR Code, raising a substantial sum in the process (video below). 1,369 black and white 4 foot squares, that had been purchased or sponsored, were laid out in the Esther Shiner Stadium by volunteers and formed into a QR Code. At 21,904 square feet the QR Code exceed the 15,625 square feet previous world record set in St-Janvier de Mirabel, Quebec by Air Fest in February 2012. The QR Code is Version 5-H, Mask 6, encoded in byte and resolves to http://goo.by/wxF7kt/theqrcode-ca. If you would like to donate to this enterprising and worthwhile charity you can do so here.
Edit: June 18, 2012 Time lapse video added.