Joyful Iranians attend a ceremony to unveil 5-tons of ice-cream made by Choopan dairy, at the Tochal mountainous area in northern Tehran, Iran, Monday, April 1, 2013. Choopan dairy unveiled 5-tons of chocolate ice-cream, the largest in the world, according to the factory officials. (AP Photo/Ebrahim Noroozi)

Joyful Iranians attend a ceremony to unveil 5-tons of ice-cream made by Choopan dairy, at the Tochal mountainous area in northern Tehran, Iran, Monday, April 1, 2013. Choopan dairy unveiled 5-tons of chocolate ice-cream, the largest in the world, according to the factory officials. (AP Photo/Ebrahim Noroozi)