salaheldin citadel alexandregia egypt daylight daylight daylight sea

salaheldin citadel egypt castle daylight sunrise alexandregia sea qayetbay alexandria fortress was established sultan al-ashraf abu al-nasr qaitbay al-mahmoudi year 882 1477 place ancient lighthouse eastern edge island pharos late mamluk state second octagonal third circular top covered dome above statue god poseidon seas oceans triple thorn famous greeks has very smooth surface works like mirror suspended below fireplace reflects light emitted fire over distance water guide ships coming its walls meters thick