The main gatehouse of Buchenwald concentration camp, photographed in the weeks following its liberation by American forces in April 1945. This wooden watchtower, with its distinctive clock and observation balcony, served as the camp's central entrance and guard post throughout its operation by the Nazi regime. In this photograph, a group of surviving prisoners gathers in the courtyard beyond the gate. Personal snapshots such as this, taken by liberating soldiers, became crucial early visual records documenting the reality of the Nazi camp system for audiences around the world. Project: 218414