Ad Track: Papa John's pie in the sky

Folks flying into Denver for the upcoming Democratic National Convention may suddenly get a pizza craving as they pass over a wheat field about 30 miles from the runway. Pizza chain Papa John's (PZZA) has turned six acres of a field in Commerce City, Colo., into a "crop circle" (those mysterious designs supposedly created by space aliens) to advertise its new whole-wheat pizza.

The company hired earthworks artist Stan Herd, who spent 600 hours crafting it.

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usatoday.com