Franklin Field:
(Random Google search)
Wiki
Current Capacity: 52,593 (Wiki)
Probably the most beautiful sports arena in Philadelphia, and one of the most historic, too. The Eagles won their last world championship here.
The Palestra:
(Wiki)
Capacity: 8,722 (Wiki)
Ah, yes, the Cathedral of College Basketball. Once home to all Big 5 games, many storied games have been played here...given the history of the Big 5.