Structures in Pennsylvania
Alexandria
Henry Willibrand Brewery, Alexandria PennsylvaniaAndalusia
Andalusia Mansion - Nicholas Biddle Estate, Andalusia PennsylvaniaAnnapolis
Chase Lloyd House, Annapolis MarylandBala Cynwyd
Bala Theater - Egyptian Theater, Bala Cynwyd PennsylvaniaBethlehem
Bethlehem Train Station, Bethlehem PennsylvaniaBreezewood
Jackson's Mill Covered Bridge, Breezewood PennsylvaniaBrownsville
Monongahela Railway Train Repair Shops, Brownsville PennsylvaniaChester
Chester Electric Power Station - PECO Energy, Chester PennsylvaniaConnellsville
Troutman Building - First National Bank, Connellsville PennsylvaniaDouglassville
Mouns Jones House Ruins, Douglassville PennsylvaniaEast Whiteland Township
Loch Aerie - Lockwood House, Glenloch PennsylvaniaElkins Park
Lynnewood Hall Mansion, Elkins Park PennsylvaniaEllwood City
McConnells Mill Covered Bridge, Ellwood City PennsylvaniaErie
George Colt Mansion, Erie Pennsylvania
Reed Mansion, Erie PennsylvaniaEverett vicinity
Lutz Woolen Factory (Juniata Woolen Mill), Everett PennsylvaniaFort Hunter
Fort Hunter Mansion, Fort Hunter PennsylvaniaGrapeville
Westmoreland Glass Company – Specialty Glass, Grapeville PennsylvaniaGreenville
Bessemer & Lake Erie Railroad Maintenance Shops, Greenville Pennsylvania
Kidd's Mill Covered Bridge, Greenville PennsylvaniaHarrisburg
Harrisburg Train Station & Trainshed, Harrisburg PennsylvaniaHorsham
Graeme Park – Horsham Plantation, Horsham Township PennsylvaniaJeannette
Jeannette Glass Company, Jeannette PennsylvaniaJohnstown
Pennsylvania Railroad Station, Johnstown PennsylvaniaJuniata Township
S.S. Grand View Point Hotel, Juniata PennsylvaniaMill Run
Falling Water - Frank Lloyd Wright House, Mill Run PennsylvaniaMonessen
Pittsburgh Steel Company Monessen Works, Monessen PennsylvaniaPhiladelphia
Atwater Kent Manufacturing Company, Philadelphia Pennsylvania
Bellevue-Stratford Hotel, Philadelphia Pennsylvania
Broad Street Train Station, Philadelphia Pennsylvania
Cliveden - Chew House, Philadelphia Pennsylvania
Connie Mack Stadium - Shibe Park, Philadelphia Pennsylvania
Eastern State Penitentiary, Philadelphia Pennsylvania
John Stetson Hat Company, Philadelphia Pennsylvania
North Philadelphia Railroad Train Station, Philadelphia Pennsylvania
Railroad Power Director Center - Thirtieth Street Station, Philadelphia Pennsylvania
Reynolds-Morris House, Philadelphia Pennsylvania
Scott Wanamaker House, Philadelphia Pennsylvania
Stenton Mansion - James Logan Home, Philadelphia Pennsylvania
Strawberry Mansion, Philadelphia Pennsylvania
Walnut Lane Concrete Arch Bridge, Philadelphia PennsylvaniaPittsburgh
Croghan House - Picnic Place, Pittsburgh Pennsylvania
John F. Singer House Mansion, Pittsburgh Pennsylvania 
Westlake Public School, Pittsburgh PennsylvaniaPottsville
Capitol Theatre, Pottsville PennsylvaniaRadnor
Bolingbroke Mansion, Radnor Pennsylvania
St. Davids Church, Radnor PennsylvaniaRobesonia
George Ege Mansion, Robesonia PennsylvaniaShippingport
Shippingport Nuclear Power Station, Shippingport PennsylvaniaTower Hill Number 2, Luzerne
Tower Hill 2 Mine & Coke Ovens, Tower Hill PennsylvaniaWest Chester
Mayfield (Willaim Ebbs House), West Chester PennsylvaniaYork
Haines Shoe House, York Pennsylvania