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Each Friday throughout the summer we bring you Destination Illinois, a look at unique attractions, neighborhoods and landmarks across the Land of Lincoln. This week we’re taking a look at an ice cream shop that has been going strong for almost 90 years in the Quad Cities, called Whitey’s Ice Cream. Jon Tunberg, who co-owns Whitey’s Ice Cream with his brother Jeff, joins Steve Bertrand on Chicago’s Afternoon News to discuss the secret to their success.

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