In a recent interview Peter Walker, the landscape architect on the memorial, recalled Mr. Arad "screaming and walking out of a room" in those early days.
In theory, they form a whole: the museum commemorates Jewish life in Germany; the Topography of Terror focuses on the Nazi perpetrators; and the Holocaust Memorial recalls the six million Jews murdered by the Nazis.
Every name on the Vietnam War Memorial recalls a veterans' sacrifice and a family's grief.
They remain green even in winter -- fitting memorials that recall not the violence but the grace of that awful day.
And as they raised this makeshift memorial, Frank Worsley recalled, "a snowstorm beat down upon us — a ghost, it seemed to me, of the hurricane in which he and I had approached South Georgia after our boat journey from Elephant Island".
A memorial celebrating Elinor's life and recalling fond memories was held at her home.
Recalling the memorial service for his colleague held at Fleet Street's St Bride's Church, he wrote: "After all my months in hospital it finally hit home hard: Simon was dead, because of the trip we had gone on together.
Ms. Burlingame, a member of the board of the National September 11 Memorial and Museum, recalled the disputes over the design of the memorial.
After all, the placement of victims' names on the memorial should not be about recalling the randomness of the crime or a display of hierarchy; it should be about remembering those who were lost.
As a result, the march of 250,000 people was confined largely to the area around the Washington Monument and the Lincoln Memorial and is recalled more as a rally.
