Taking a page from the partnership between competitors Amex and Foursquare, MasterCard and Facebook has teamed up with a new nationwide campaign, “Priceless.” Starting in New York, folks are challenged to find and scan QR codes of 20 seats from the old Yankee Stadium scattered around the city at famous spots such as Katz’s Deli. After doing so, they’ll be checked-in to Facebook Places and made eligible to win VIP tix to a Yankees game sitting in MasterCard’s presumably swanky suite. Other cities to follow soon.

 [via Mashable]