In WWI, a British prisoner of war was released from German prison camp to see his dying mother on the promise that he would return, and he did
Star Trek creator Gene Roddenberry survived a plane crash in 1947 and he went back to evacuate passengers from the burning plane
The abandoned village of Oradour-sur-Glane, where 642 villagers were massacred by a Nazi Waffen-SS company.
The tunnels of Cu Chi: A network of underground tunnels used as hideouts for the Viet Cong during the Vietnam War