Pennsylvania - Area of significance: Landscape Architecture
| Abbeville |
| Allegheny Cemetery |
| Allegheny Commons |
| Allgates |
| Awbury Historic District |
| Black Moshannon State Park Day Use District |
| Black Moshannon State Park Family Cabin District |
| Black Moshannon State Park Maintenance District |
| Bryn Mawr College Historic District |
| Central Bethlehem Historic District |
| Chanticleer |
| Chatham Village Historic District |
| Cherry Springs Picnic Pavilion |
| Chestnut Hill Historic District |
| Clear Creek State Park Day Use District |
| Clear Creek State Park Family Cabin District |
| Colton Point State Park |
| Compton and Bloomfield |
| Cook Forest State Park Indian Cabin District |
| Cook Forest State Park River Cabin District |
| Cowans Gap State Park Family Cabin District |
| Curtis Arboretum |
| Easton Cemetery |
| Elliott, S. B., State Park Day Use District |
| Elliott, S. B., State Park Family Cabin District |
| Elm Court |
| Evergreen Hamlet |
| Fairmount Park |
| Fallingwater |
| Farmers' High School |
| Franklin Square |
| French Creek State Park: Organized Group Camp 4 District |
| French Creek State Park Six Penny Day Use District |
| Frick Park |
| Gettysburg National Military Park |
| Glen Foerd at Torresdale |
| Grandview Cemetery |
| Grange, The |
| Greenwood Lake Dam |
| Halfway Lake Dam |
| Hershey, Milton S., Mansion |
| Highlands, The |
| Huston, Abram, House and Carriage House |
| Kooser State Park Family Cabin District |
| Laurel Hill Cemetery |
| Laurel Hill RDA |
| Lawrenceville Historic District |
| Legislative Route 1 Sycamore Allee |
| Linn Run State Park Family Cabin District |
| Logan Square |
| Longue Vue Club and Golf Course |
| Longwood Gardens District |
| Malvern Hall |
| Mellon Park |
| Memorial Fountain and Statue |
| Merion Golf Club, East and West Courses |
| Midtown Harrisburg Historic District |
| Monongahela Cemetery |
| Mothers’ Memorial, Hoffman Memorial, and Veterans’ Memorial |
| Mount Hope Estate |
| Narbrook Park Historic District |
| Oakmont Country Club Historic District |
| Old Federal Reserve Bank |
| Pagoda |
| Parker Dam State Park Family Cabin District |
| Parker Dam State Park-Octagonal Lodge |
| Parker Dam State Park-Parker Dam District |
| Pennsylvania State Office Building |
| Promised Land State Park-Bear Wallow Cabins |
| Promised Land State Park Whittaker Lodge District |
| Racoon Creek RDA |
| Ravensburg State Park |
| Reading Country Club |
| Rittenhouse Square |
| Riverview Park |
| Sauer Buildings Historic District |
| Schenley Farms Historic District |
| Schenley Park |
| Trinity Hall |
| Tulpehocken Station Historic District |
| Twin Bridges Rural Historic District |
| Vandergrift Historic District |
| Washington Square |
| West Laurel Hill Cemetery |
| Whipple Dam State Park Day Use District |
| Woodward Hill Cemetery |
| Worlds End State Park Family Cabin District |
Data from United States Park Service and Wikidata
