Get the indicated number of Hall Of Fame mode points to unlock the corresponding arena.

December to Dismember: 8 points.
ECW One Night Stand: 7 points.
Great American Bash: 10 points.
New Year's Revolution: 9 points.
No Way Out: 5 points.
Summerslam: 11 points.
Vengeance: 6 points.
Wrestlemania 23: 12 points.