British naval heroes don’t come more legendary than Vice-Admiral Horatio Nelson, a boy from Norfolk who eventually died at the age of 47 at the Battle of Trafalgar. When the British fleet returned to Gibraltar they brought the corpse of their hero with them, entombed in a barrel of wine and carefully transferred to the Rosia Bay, Gibraltar’s only deep water anchorage. This is has since become known as Nelson’s Anchorage, although the Rosia Bay name survives. The 100-Ton Gun is also here, a mightily heavy piece of artillery that is one of only two of its kind on the planet.