FILE This Aug. 20, 2012 file photo shows the field during the second half of an NFL preseason football game between the Green Bay Packers and the Kansas City Chiefs from a luxury box in Green Bay, Wis. The Packers may only play here about a dozen times a season, but fans can visit practically every day of the year, for a tour that costs just $11. It offers a peek behind the curtain where so much of professional football's history has been written. The tour takes visitors to the atrium and luxury boxes, but the locker room and the field is off limits. (AP Photo/Mike Roemer)