The Dallas Cowboys remain the NFL's most valuable franchise

"America's Team" is also the world's richest team.

According to Forbes, the Dallas Cowboys are the world's most valuable sports franchise, valued at $4 billion. It's familiar territory for the NFL team as this is its ninth-straight year with the honor.

And it's pretty obvious when you look at their home field, AT&T Stadium.

The $4 billion price tag for the franchise is a big leap from where it was in 2007, the first time it ranked atop the league in valuation. Then, it was valued at $1.5 billion, according to Forbes' estimates.

Impressively, the Cowboys have been able to retain their value even thought they haven't won a Super Bowl since 1995.

As a whole, the NFL is still bringing in a healthy amount of cash despite all of the recent off-the-field issues involving concussions and domestic violence.

And clearly Deflategate didn't effect the New England Patriots' pockets too much either. Tom Brady and company ranked second on the list of NFL teams with a valuation of $3.2 billion — up 23 percent from last year.

In fact, valuations for all 32 NFL teams rose, Forbes reports. The average NFL franchise is now worth about $2 billion, thanks in large part to TV contracts, sponsors and new stadiums.

The NFL's 10 most expensive stadiums:

Worldwide, Spanish soccer team Real Madrid beat out the Patriots as the second most valuable sports franchise with a valuation of $3.26 billion.

Rounding out the NFL's top five after the Patriots are the Washington Redskins, New York Giants and San Francisco 49ers.

Forbes listed the Buffalo Bills as last in the NFL with a value of $1.4 billion.

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