Hess was Adolf Hitler's right hand man, the last Nazi to die in prison some years ago at the age of 93. His grave was becoming a shrine for neo-Nazis, so his remains have been exhumed (with his family's permission), and they are being cremated. His ashes will be scattered at sea; his gravestone has already been removed.
The top German war criminals who were hanged (including Hermann Goering, who managed to kill himself the night before) were all cremated and their ashes scattered in secret. No shrine to them exists anywhere. By the end of the War in the Pacific, though, we were feeling more sensitive to local opinion. We gave the ashes of hanged Japanese war criminals back to the Japanese government, and they have all been entombed in the big national Shinto shrine, where lots of people -- including at least one prime minister -- have paid their respects, much to the worriment of those who wonder just how repentant the Japanese are for their aggression in the 1930s and '40s.