The gateway structure to the ancient Egyptian temples such as at Luxor and Karnak was named a pylon by the Greeks, two pyramidal shaped walls facing out with a passage between, a cornice atop, from the greek word pyle meaning gate (the Latin pila the word for stone barrier), which brings to mind the word pillar, probably of the same etymological root, thus “the Pillars of Hercules” too a pylon is a sense, the gateway from the Mediterranean to the Atlantic (named for the daughters of Canaan’s grandson Atlas).