Losing a Super Bowl is something a team never forgets.

Getting embarrassed in the Super Bowl is something a team can never outrun.

Sometimes teams get a second chance after losing, but many times, it's the one shot at glory they'll get. Making it to the final game and losing is tough for any team, but even more so for these groups that made runs to the Super Bowl.

Here are the 11 biggest disappointments—and one bonus—in NFL history.