Rendering of the proposed National Sofa, to be located across Pennsylvania Avenue from the White House, by Jim Allegro, AIA, and Doug Michels, 1996. Allegro and Michels were concerned that the closure of Pennsylvania Avenue following the Oklahoma City bombing would further isolate the presidency from the people. They proposed the National Sofa as a place of virtual and physical interaction to address that gap. Copyright: James Allegro, AIA and Doug Michels.