THREE naval submarines used by Nazis during World War II were discovered buried under a car park decades after they went missing. The U-boats - an abbreviation of Unterseeboot meaning "undersea boat" - remain today entombed and unclaimed in a bunker designed to protect Germany's precious assets from air attacks in the 1940s. 5 The 'Elbe II' bunker in Hamburg was built to protect Germany's precious U-boats 5 At the end of Second World War, Elbe II fell to the British armies Credit: Lostplaces.de 5 Three U-boats today remain at the partially-demolished site today Credit: Lostplaces.de In May 1945, after...