Which college football facility is the most expensive?

I've heard of universities spending tons of money on their sports facilities. Does anyone know which college football facility holds the title of most expensive in the country?

The title for the most expensive college football facility in the country currently goes to Texas A&M University's Kyle Field. The stadium underwent a massive $450 million renovation in 2015 which is the most expensive in the history of college football. This extensive revamp increased the stadium's seating capacity to 102,733, making it one of the five largest stadiums in collegiate football. Although funds for such projects often come from donors and other outside sources, it's also part of a bigger trend of universities investing heavily in their athletic facilities.