AT&T Stadium - Dallas Cowboys
A general view outside of AT&T Stadium prior to a week 13 NFL football game between the Dallas Cowboys and the Washington Redskins on Thursday, Nov. 30, 2017 in Arlington, Texas. Dallas won 38-14. (Aaron M. Sprecher via AP)

Raymond James Stadium - Tampa Bay Buccaneers
A detail view of fans and the pirate ship in Raymond James Stadium during an NFL football game between the Atlanta Falcons and the Tampa Bay Buccaneers, Sunday, December 5, 2010. The Falcons won the game, 28-24. (AP Photo/Paul Abell)

Gillette Stadium - New England Patriots
An exterior view of Gillette Stadium, Sunday, July 30, 2017, in Foxborough, Mass. (AP Photo/Michael Dwyer)

Ford Field - Detroit Lions
Ford Field, home of the Detroit Lions adjacent to Commerce Park in Downtown Detroit, just before the start of the 2009 NFL Season. (AP Photo/Julia Robertson)

MetLife Stadium - New York Jets
A general view outside of MetLife Stadium prior to an NFL football game between the Indianapolis Colts and the New York Jets on Monday, Dec. 5, 2016 in East Rutherford, N.J. Indianapolis won 41-10. (Aaron M. Sprecher via AP)

Soldier Field - Chicago Bears
An exterior view of Soldier Field, home of the Chicago Bears, Chicago October 1985. (Al Messerschmidt via AP)

Lincoln Financial Field - Philadelphia Eagles
A View of Lincoln Financial Field during the Philadelphia Eagles NFL Flight Night at Lincoln Financial Field in Philadelphia, Pennsylvania on Sunday August 2nd 2009. (AP Photo/Brian Garfinkel)

FedExField - Washington Redskins
A general view outside of FedEx Field as fans walk into the stadium prior to an NFL football game between the Washington Redskins and the Oakland Raiders on Sunday, Sept. 24, 2017 in Landover, Md. Washington won 27-10. (Aaron M. Sprecher via AP)