Photo taken on Aug. 27, 2020 shows an entrance gate bearing the words "Work makes (you) free" at the Sachsenhausen memorial in Oranienburg, Germany. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)

Photo taken on Aug. 27, 2020 shows the Soviet Liberation Memorial at the former Sachsenhausen concentration camp site of the Sachsenhausen memorial in Oranienburg, Germany. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)

Visitors walk between cells at the former Sachsenhausen concentration camp site of the Sachsenhausen memorial in Oranienburg, Germany, Aug. 27, 2020. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)

Visitors view an exhibition at the former Sachsenhausen concentration camp site of the Sachsenhausen memorial in Oranienburg, Germany, Aug. 27, 2020. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)

Photo taken on Aug. 27, 2020 shows a cell at the former Sachsenhausen concentration camp site of the Sachsenhausen memorial in Oranienburg, Germany. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)

Photo taken on Aug. 27, 2020 shows wire fences at the former Sachsenhausen concentration camp site of the Sachsenhausen memorial in Oranienburg, Germany. The Sachsenhausen concentration camp was built by the Nazis in Oranienburg in 1936. More than 200,000 people were interned at the facility between 1936 and 1945, and about 100,000 died there. As a memorial and museum today, the Sachsenhausen memorial attracts about 700,000 visitors every year to witness the crimes of the Nazis. (Xinhua/Shan Yuqi)