battlement blue castle Cawdor clouds defence flag flagpole garden gardens home pole roof safety security sky stone stonework thane tower window ancient battlements defend defense defensive England english Great Britain historical history old secure strong Sussex wall architecture curved cyprus fort Girne harbour Kyrenia port stronghold building city fortification Israel Jerusalem landmark limestone strength beach beam breakwater coast erosion gravel groyne horizon sea shingle shore stones tide water wave wooden arches david fortifications interior ruins walls aircraft army battle danger destroy explosive ground-to-air missile military missile rocket surface to air missile war weapon