Allegheny County
Kennywood Park
Oakmont
Woodville
Beaver County
Matthew S. Quay House
Bedford County
Espy House
Berks County
Conrad Weiser House
Bucks County
Andalusia
Badgers Hollow
Fonthill
Green Hills Farm
Squirrels Oak
Summerseat
Carbon County
Asa Packer Mansion
Chester County
Cedarcroft
Humphry Marshall House
Lightfoot Mill
Wharton Esherick Studio
Cumberland County
Old West, Dickinson College
Dauphin County
Milton S. Hershey Mansion
Simon Cameron House
Delaware County
Benjamin West Birthplace
N. C. Wyeth House and Studio
The Printzhof
William Brinton 1704 House
Fayette County
Albert Gallatin House
Fallingwater
Isaac Meason House
Isaac Newton and Bernardine Hagan House
Searights Tollhouse
Huntingdon County
Pulpit Rocks
Lackawanna County
Terence V. Powderly House
Lancaster County
James Buchanan House
Robert Fulton Birthplace
Stiegel-Coleman House
Lehigh County
George Taylor House
Monroe County
Dove Cottage
Montgomery County
Graeme Park
Grey Towers Castle
Henry Antes House
M. Carey Thomas Library, Bryn Mawr College
Mill Grove
Woodmont
Northampton County
Gemeinhaus-Lewis David De Schweinitz Residence
Northumberland County
Joseph Priestley House
Philadelphia County
Albert Gallatin House; Friendship Hill National Historic Site
Andalusia
Asa Packer Mansion
Ash Lodge
Bell House
Benjamin West Birthplace
Cedarcroft
Conrad Weiser House
David Bradford House
