max von, who is the dean of architects, our late partner who passed away during the competition, he androup through north carolina, they had an offer in the program two years prior to when the competition was announced. the project was -- the competition phase was for about a year, i think it was in our with david adjaye and associates and the smiths group the building. 60% of the building is below grade. one of the things you will relationship was inverted to complete the city block. but we found it had a much more intimate relationship with the monument room by pushing more of the program below grade. the history gallery does not want light. so it's a really interesting relationship top to bottom. >> museum director lonnie bunch has talked about the mall being america's front yard. keeping that in mind, what was behind your conception of the history gallery and how it connects, not only to the mall, but the exterior design of the building. the main thing you see is the atrium. it is nice to see that light wash down into the chamber as intoove lower and lower the building, you are goin