Answer: gibraltar

AnswerCrossword Clue
GIBRALTARThe Rock of ... (after translation, "The Rock of the Rock of Tariq")
GIBRALTARFortress.
GIBRALTARStrategic fortress.
GIBRALTARThe Rock.
GIBRALTARBritish stronghold.
GIBRALTAROne of the Pillars of Hercules.
GIBRALTAR"The Rock."
GIBRALTARFortress and seaport near the S tip of Spain.
GIBRALTARA Pillar of Hercules.
GIBRALTARUnassailable fortress.
GIBRALTARImpregnable stronghold
GIBRALTARRock in the Prudential logo
GIBRALTARRoyal Navy stronghold during W.W. II