Dia's retrospective of works by Agnes Martin enters its second phase with "...unknown territory..." While part one, "...going forward into unknown territory...," concentrated on Martin's formative years 1957 to 1960, within the decade that she spent in New York City (1957 to 1967), this new installation focuses on a selection of her signature works from the 1960s, bringing together rarely seen classic grid paintings from this key period in her oeuvre. "...unknown territory..." will be on view through November 7, 2005 and will be followed in December 2005 by an installation of paintings from the years 1974 to 1979. This retrospective of Martin's work will continue in installments over the next three years.