The Penn–Liberty Historic District is a historic district in the downtown Pittsburgh, Pennsylvania, United States. The district was listed on the National Register of Historic Places on November 18, 1987.[1]

References

  1. ^ a b "National Register Information System". National Register of Historic Places. National Park Service. March 13, 2009.
  2. ^ "Local Historic Designations". Pittsburgh, PA: Pittsburgh History & Landmarks Foundation. Retrieved July 30, 2011.