7. Paul Brown Stadium
More popularly known as “The Jungle” due to being the home stadium of the Cincinnati Bengals, the Paul Brown Stadium boasts a seating capacity of 65,535, several training and practice facilities, as well as administrative offices on 22 acres of property. Built on a cost of $617 million, this football arena was the only NFL stadium to be featured in Harris Interactive’s “America’s Favorite Architecture” list, as well as the very first NFL-based structure to win an AIA award.