Photo story: the story behind the hazelnuts of Piedmont, Italy

The hills just outside Alba, in Italy’s Piedmont region, are striped with green rows of trees and vines. The area is renowned for its wines and white truffles, but the jewel in its crown is the nocciola del Piemonte, a delicate variety of hazelnut.

This article was adapted from National Geographic Traveller (UK).

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