This chapter focuses on making new heritage that marks atrocity and transition. It analyses the creation of atrocity museums, particularly in East Asia, Eastern Europe, and Latin America, to come to terms with a difficult past and re-narrate the nation moving into the future through artefacts. The chapter also looks at the Guatemalan National Police Archives and archives as a type of heritage that can be used to promote prosecution efforts in transitioning societies. The chapter examines underwater cultural heritage as well, and the regime of the UNESCO 2001 Convention on the Protection of the Underwater Cultural Heritage in relation to human corpses, which are given stronger protections than human remains receive in other heritage regimes. The history behind this treaty reveals that the reason for these stronger protections has precisely to do with the bodies of fallen soldiers during the World Wars. Australia is an example of a country that, after initially rejecting the treaty, is now considering its ratification at the behest of civil society representing war veterans, thus becoming an example of how underwater heritage can also have an important role in transitional contexts.