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The wait was on the long side for the pizza -- 18 hours -- but this was an extraordinary pie: 5234 ft., or nearly a mile long.

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More than 60 of Italy's best pizza-makers worked through the night to create a 5234 ft., or nearly a mile long pizza at Milan's world fair. (AP)

More than 60 of Italy's best pizza-makers worked through the night to create the pizza at Milan's world fair, Expo 2015. Their toil was rewarded with a proclamation by Guinness World Records judge Saturday that it was the world's longest pizza. Expo organizers said the record-setting pie, made with 1.5 tons of mozzarella and 2 tons of tomato sauce, weighed some 5 tons in all.

The creation topped the record of a 5234 ft.-kilometer-long pizza made in Spain.

Fair-goers could eat slices of the Milan pizza for free. Slices of long, rectangular pizzas with various toppings are a popular street food in Italy.