17. Gaylord Family Oklahoma Memorial Stadium - 82,112
The Oklahoma Sooners' stadium is already a monster steeped in history after being built in 1925, though it is set for some huge renovations to completely change the look of the arena. A reported $370 million will be ploughed into turning the stadium into one continuous bowl, with a walled outer shell, resembling a very similar style to the San Francisco 49ers' new Levi's Stadium.