Of course, the most exciting aspect of a fort's bastion is its leading edge. The front of each of Fort Clinch's bastions served as a powder magazine...which seems an interesting choice. Sure, the bastions are going to be the thickest, most stoutly-built aspect of the fort, but...they're also likely to be the first things targeted by an attacker. Putting all your powder into that spot seems counterintuitive, but at least it would have been close at hand. Until it blew up and killed everyone.