The massive "Tower of the King's daughter". My guide claims "The lower part is late 12th century but the upper machicolations (Wikipedia: An opening between the corbels which support a projecting parapet, or in the floor of a gallery or the roof of a portal, shooting or dropping missiles upon assailants attacking the base of the walls. Also, the construction of such defences, in general, when of this character) are probably Mamluk. And: The upper hall [...] contains on the outer wall 12 niches which the recent re-interpretation of the tower assumes were latrines rather than defensive firing slits.