Cowboys Stadium is the working title of a new retractable-roof stadium being built in Arlington, Texas for the National Football League's Dallas Cowboys. It will replace the hypaethral Texas Stadium, which opened in 1971, as the Cowboys’ home. It is scheduled to open before the 2009 NFL season and will accommodate 80,000, with the possibility for expansion to accommodate 100,000. Besides the Cowboys, the new stadium will be used by college football teams and other organizations for other sporting and non-sporting events. The estimated $1.3 billion in construction costs makes the new stadium the most expensive sports venue ever built.