The missing submarine was found off the coast of Denmark. Sea War Museum Jutland _______________________________________________________________________________________________________________ A missing German submarine said to have taken the defeated Nazi leadership to South America has been discovered after being lost at sea for nearly 73 years. The U-3523 was one of Hitler’s Type XXI submarines – a new and highly advanced design which came too late to stop an allied victory. It was the first class of U-boats designed to sail submerged for a prolonged period of time and had a range which allowed it to sail non-stop to South America. The U-3523...