The citdadel's daily occupation was to serve as living quarters for Fort Pike's garrison (maybe more comfortable than living in a casemate, but it couldn't have been too much better, surely), but its ultimate duty was to be the fort's last-ditch defense should the outer earthworks, moat, drawbridge and walls all fail to keep attackers out. As such, these picturesque little rifle loops stud the sides of the citadel.