The argument for the league's greatest dynasty could be made for Lombardi's Green Bay Packers.
However, the '70s Pittsburgh Steelers possessed some of the greatest teams in the history of the NFL.
The vaunting Steelers defense earned the nickname "Steel Curtain" with the tradition carrying on to the modern-day team.
On the offensive side, the Steelers had plenty of talent across the board. Terry Bradshaw, Franco Harris and Lynn Swann were considered the best at their respective positions.
Oh, and let's not forget that Chuck Noll orchestrated this dynasty from top to bottom.
Hall of Famer Bill Walsh once said, "The Steelers had the best grouping of players in the history of the game."
Translation: four Super Bowl titles in six years.