FILE - Tourists visit the ruins of Adolf Hitler's headquarters the "Wolf's Lair" in Gierloz, northeastern Poland, July 17, 2004 where his chief of staff members made an unsuccessful attempt at Hitler's life on July 20, 1944. Polish prosecutors have discontinued an investigation into human skeletons found at Wolf's Lair where German dictator Adolf Hitler and other Nazi leaders spent time during World War II because the advanced state of decay made it impossible to determine the cause of death, a spokesman said Monday, May 6, 2024. (AP Photo/Czarek Sokolowski, File)