Pennsylvania - Area of significance: Exploration/Settlement
| Aaronsburg Historic District |
| Abbott, John, House |
| Annville Historic District |
| Bechdel II, Christian, House |
| Berk, Daniel, Log House |
| Biery's Port Historic District |
| Big Bend Historical Area |
| Blythe, Benjamin, Homestead |
| Bonnet's Tavern |
| Boonecroft |
| Bowman Homestead |
| Boyer, Riter, House |
| Brodhead Farm |
| Brown, John, Tannery Site |
| Brumbaugh Homestead |
| Burnt Cabins Historic District |
| Burroughs, John, Homestead |
| Byecroft Farm Complex |
| Catawissa Friends Meetinghouse |
| Centre Mills |
| Chestnut Ridge and Schellsburg Union Church and Cemetery |
| Chestnut Street Log House |
| Cold Spring Farm Springhouse |
| Columbia Historic District |
| Dale, Felix, Stone House |
| Donegal Presbyterian Church Complex |
| Downingtown Log House |
| Doylestown Historic District |
| Drake Log Cabin |
| Easton House |
| Ferguson, William, Farm |
| Fort Hunter Historic District |
| Fort Necessity National Battlefield |
| Frew, John, House |
| Gladwyne Historic District |
| Gloninger Estate |
| Green Valley Historic District |
| Grove Historic District |
| Hammersly-Strominger House |
| Hance House and Barn |
| Harlan House |
| Harlan Log House |
| Harvey, Nathan, House |
| Irvin-Patchin House |
| Irwinton Historic District |
| Isett, Jacob, House and Store |
| Levan Farm |
| Liberty Hall |
| Lincoln, Mordecai, House |
| Locust Grove Archaeological District |
| Lord House |
| Lower Swedish Cabin |
| Lumberville Historic District |
| Marcus Hook Plank House |
| Meadville Downtown Historic District |
| Meier, Isaac, Homestead |
| Middle Pickering Rural Historic District |
| Midtown Harrisburg Historic District |
| Millheim Historic District |
| Montgomery, Gen. William, House |
| Morris, Anthony, House |
| Nearpass House |
| Nicholson House and Inn |
| Northbrook Historic District |
| North Warwick Historic and Archeological District |
| Nyce Farm |
| Okehocking Historic District |
| Old Swede's House |
| Paradise Valley Historic District |
| Parsons-Taylor House |
| Penn, William, Landing Site |
| Perikomen Bridge Hotel |
| Peters House |
| Philips, Hardman, House |
| Plumer House |
| Potter-Allison Farm |
| Providence Quaker Cemetery and Chapel |
| Quakertown Historic District |
| Red Hill Church and School |
| Richardson, Joseph, House |
| Ricketts, Clemuel, Mansion |
| Riegel, Benjamin, House |
| Rocky Spring Presbyterian Church |
| Saeger, Edward, House |
| Shelter House |
| Shippensburg Historic District |
| Siegfried's Dale Farm |
| Slate Hill Cemetery |
| Smalley, Lewis, Homestead |
| Snyder, Caspar, House |
| Soldiers and Sailors Monument |
| Springton Manor Farm |
| Steckel, Daniel, House |
| St. Patrick's Roman Catholic Church |
| Strickler Family Farmhouse |
| Stroud Mansion |
| Sturgeon House |
| Sutter, Johann Agust, House |
| Swetland Homestead |
| Taylor-Cope Historic District |
Data from United States Park Service and Wikidata