Today marks the 20-year anniversary of the opening of the United States Holocaust Memorial Museum. Called “a living memorial to the Holocaust,” and hailed as groundbreaking, its unsparing narrative–populated with artifacts, oral and video histories, and conversations with survivors –has attracted nearly 35 million visitors. Two days of formal anniversary observances kick off next week with a National Tribute Dinner April 28 and a National Tribute to Holocaust Survivors and World War II Veterans April 29 featuring former President Bill Clinton, and Founding Chairman Elie Wiesel.

Visitors pass beneath a cast taken from the original entrance to the Auschwitz death camp, inscribed with the phrase Arbeit Macht Frei (Work Makes One Free). (Photo by Bill O’Leary/The Washington Post)

In honor of the anniversary, here are some Washington Post stories on the museum and its legacy:

REVIEW: The Holocaust Museum, an Album of Agony

Holocaust Museum receives $17.2 million, its largest gift to date

Holocaust Museum in negotiations to maintain loaned exhibitions

At the Holocaust Museum, treading quietly through the unspeakable 

United States Holocaust Memorial Museum