 In July 2011, McDonald's announced that their largest pop-up restaurant in the world would be built on the 2012 London Olympics site.The temporary restaurant contained over 1,500 seats and was half the length of an American football field.Over 470 staff were employed serving on average (during the 2012 Olympics) 100,000 portions of fries, 50,000 Big Macs and 30,000 Milkshakes.