The Franklin and Armfield Office, now known as the Freedom House Museum, is a historic commercial building at 1315 Duke Street in Alexandria, Virginia. Built c. 1810-20, it housed the offices of the largest slave trading firm in the antebellum south, started in 1828 by Isaac Franklin and John Armfield. It was designated a National Historic Landmark in 1978. The Freedom House Museum is owned by the Northern Virginia Urban League, with exhibits about the building's slave trading history and the life of a slave.[5]