I recently visited Portsmouth, England, with Son #2. Lovers of rum and Patrick O’Brian novels will know Portsmouth is the home of the Royal Navy, but it is also is home to excellent museums and an array of gobsmacking historical exhibits. A Cold War submarine. A small warship that survived the First World War Battle of Gallipoli. The remains of the Mary Rose, Henry VIII’s favourite warship, sunk in battle in 1545. And most famously, HMS Victory, Admiral Nelson’s flagship.