Title: Wilczy Szaniec, Twierdza Boyen i okolice oraz inne kwatery Hitlera w Europie
Subjects: Assassination attempt, 1944 (July 20), History, Homes and haunts
Places: Kętrzyn Region, Kętrzyn Region (Poland), Poland, Wolfsschanze (Poland)
People: Adolf Hitler (1889-1945)