Fig. 3

Massive masonry. a Massive building blocks with single block  length indicated. b The ‘secret passage’ postern, single block height indicated. c Typical trapezoid ashlar, northern face of the northwestern tower. d Substantial curtain wall destruction, eastern face of the northwestern tower with single block height indicated. e Inside the ‘secret passage’. f Large archer slit at the ‘secret passage’. g Gigantic monolithic fragment of spiral staircase, western wreckage. h. Panoramic view of western wreckage piles