Open House: Washington, DC Posted on 20 May, 2012 by ehlsguest Loading Map.... Georgetown University, Mortara Center3600 N Street NW - WashingtonDetails 38.9067024 -77.07029820000002 Date/Time: Sunday, May 20, 2012 1:00 pm - 4:00 pm Location: Georgetown University, Mortara Center 3600 N Street NW Washington, DC 20057