A woman walks in the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany, on Jan. 27, 2019. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)

A man walks in the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany, on Jan. 27, 2019. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)

A woman visits the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany, on Jan. 27, 2019. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)

A rose is seen at the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany, on Jan. 27, 2019. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)

A rose is seen at the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany, on Jan. 27, 2019. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)

Photo taken on Jan. 27, 2019 shows a view of the Memorial to the Murdered Jews of Europe in Berlin, capital of Germany. The memorial, located in the center of Berlin, was built to remember the up to six million Jews killed in Nazi Germany during World War II. In 2005, the UN General Assembly adopted a resolution which designated Jan. 27 as the International Day of Commemoration in Memory of the Victims of the Holocaust, the day when Auschwitz death camp was liberated in 1945. (Xinhua/Shan Yuqi)