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Fig. 3 | Heritage Science

Fig. 3

From: Differential earthquake footprints on the masonry styles at Qal’at al-Subayba (Nimrod fortress) support the theory of its ancient origin

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

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