Osama Bin Laden’s...

violent anti-modern brand of Islam has little to do with the Middle Ages, Eli Lehrer -- Frum Forum -- opines... as medieval Muslims were, mostly, more tolerant than their Christian counterparts, he asserts.

     Still, a glance at his hideout’s floor plan reveals some real similarities to a western European medieval siege castle. (And bear, e.g., some resemblance to Richard the Lionheart’s famous Chateau Gaillard in France)

     Although the building techniques were a lot different, the hideout had "all the basic feature" of the medieval castle: There's a central “keep,” outer, middle and inner wards for defense and even a “curtain wall” (which the Washington Post labels a “privacy wall”) around the “keep."

     Whoever designed it likely absorbed some of the ideas of medieval castle building.

     Though we may indeed never know more than this supposition.