Malta
Fort Rinella is a Victorian fortification built to contain a single gun weighing 100 tons which is still in place. The British felt the need for such large guns as a response to the Italians having, in 1873, built the battleships Duilio and Dandalo with 22 inches of steel armour and four similarly large 100-ton Armstrong guns per vessel. The British were seeking to ensure the vital route to India through the Mediterranean and the Suez Canal.
