Pennsylvania - Area of significance: Social History
| Gray-Taylor House |
| Greenbelt Knoll Historic District |
| Green Hills Farm |
| Greenwood Lake Dam |
| Halfway Lake Dam |
| Hamilton Apartments |
| Hamorton Historic District |
| Harmony Historic District |
| Harper, Frances Ellen Watkins, House |
| Hawk Mountain Sanctuary District |
| Hazeltine, A. J., House |
| Hazelwood Brewing Company |
| Hershey Community Center Building |
| Hershey, Milton S., Mansion |
| Homestead Historic District |
| Horsham Friends Meeting |
| Hosanna Church and Cemetery |
| Houses at 1907-1951 N. 32nd St. |
| Hovenden House, Barn and Abolition Hall |
| Independence National Historical Park |
| Institute of the Pennsylvania Hospital |
| Integrity Title Insurance, Trust and Safe Deposit Company |
| Irish-Townsend House |
| Israel Building |
| Johnstown Flood National Memorial |
| Jones, Benjamin F., Cottage |
| Jones, B. F., Memorial Library |
| Kane, Thomas L., Memorial Chapel |
| Kensington Branch of the Philadelphia YWCA |
| Keswick Theatre |
| Kooser State Park Family Cabin District |
| La Blanche Apartments |
| Lancaster Crematorium |
| Laurel Hill RDA |
| Leidy, Dr. Joseph, House |
| LeMoyne Crematory |
| Lemoyne, Dr. Julius, House |
| LeMoyne, F. Julius, House |
| Liberty Fire Company No. 5 |
| Lincoln University |
| Linn Run State Park Family Cabin District |
| Locust Grove Archaeological District |
| Lorraine Apartments |
| Lukens Historic District |
| Marianna Historic District |
| Marlborough Village Historic District |
| Massey, Thomas, House |
| Meier, Isaac, Homestead |
| Melrose |
| Merrick Art Gallery |
| Mexican War Streets Historic District |
| Midland Cemetery |
| Mikveh Israel Cemetery |
| Mill-Rae |
| Mill Rift Hall |
| Mooncrest Historic District |
| Mother Bethel A.M.E. Church |
| Mothers’ Memorial, Hoffman Memorial, and Veterans’ Memorial |
| Mount Hope Estate |
| Mount St. Peter Roman Catholic Church |
| Mount Tabor AME Zion Church and Cemetery |
| Mount Zion A.M.E. Church |
| Mt. Alvernia Historic District |
| Nantmeal Village Historic District |
| New Century Clubhouse |
| New Century Guild |
| Noon, Philip, House |
| Nugent Home for Baptists |
| Oakdale |
| Oak Hall Historic District |
| Old Economy |
| Old Indiana County Jail and Sheriff's Office |
| Old Main |
| Old Swede's House |
| Packer, Asa, Mansion |
| Pardee, Israel Platt, Mansion |
| Parker Dam State Park Family Cabin District |
| Parker Dam State Park-Octagonal Lodge |
| Parker Dam State Park-Parker Dam District |
| Passtown Elementary School |
| Patriotic Order Sons of America Washington Camp 422 |
| Penn Asylum for Indigent Widows and Single Women |
| Penn-Craft Historic District |
| Pennock, Martha, House |
| Pennsylvania Chautauqua Historic District |
| Pennsylvania Hospital |
| Pennsylvania Institute for the Deaf and Dumb |
| Pennsylvania State Lunatic Hospital |
| Philadelphia College of Art |
| Philadelphia Contributionship |
| Philadelphia Racquet Club |
| Philadelphia School of Design for Women |
| Pitcairn Building |
| Poth, Frederick A., Houses, |
| Powderly, Terence V., House |
| Powelton Historic District |
| Powelton, The |
| Presser Home for Retired Music Teachers |
| Priestley, Dr. Joseph, House |
| Princeton Club |
Data from United States Park Service and Wikidata
