DENVER A crop circle has appeared in a wheat field outside of Denver, but there’s no mystery in how it came to be: Papa John’s created it to promote the chain’s new whole-wheat pizza crust. The 6-acre crop circle is in the shape of a giant pepperoni pizza. "Earthworks artist" Stan Herd used red mulch to depict the pepperonis, corn stalks for green peppers, black mulch for black olives and harvested-wheat for the cheese. Papa John's logo and the words "America's choice" and "100% ...

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