Two finalists have been named in the competition to determine what will be done with the space known as Ground Zero. Architect Daniel Libeskind, whose proposal includes much use of concrete and preservation of the Ground Zero site as a memorial to the victims of the 9/11 attacks, is one finalist. The other final slot goes to the THINK Team, headed by Rafael Viñoly, which proposes to construct an elaborate complex of glass and steel, dominated by two transparent latticework towers where the original Twin Towers once stood. The winning design will be announced by the end of the month.