ancient architecture barrel battlements cannons Cornish cornwall defence defend defense England english force Great Britain gun historical metal Michael mount national trust old power protect ramparts saint St. Michael's Mount stock stone war weapon wheels cannon firepower sea coastline small aim aimed aiming angled angles anti-aircraft-gun Australian-Defence-Force coast coastal-defence death defensive destruction destructive hilltop military mounted mounted-gun placed placement protection protective shrubbery upward vegetation weaponry World-War-2 wwii adansonia gregorii Australian baobab Australian boab barrel trunk boab boab tree bottle tree brown-gray brown-grey dead rat tree deciduous distinctive gadawon gouty stem tree grotesque indigenous Kimberley native large road verge shape slow-growing smooth bark soft fibrous wood trunk useful verge water retention