Structures in Pennsylvania
Alexandria
Henry Willibrand Brewery, Alexandria PennsylvaniaBreezewood
Jackson's Mill Covered Bridge, Breezewood PennsylvaniaBrownsville
Monongahela Railway Train Repair Shops, Brownsville PennsylvaniaDouglassville
Mouns Jones House Ruins, Douglassville 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 PennsylvaniaHorsham
Graeme Park – Horsham Plantation, Horsham Township PennsylvaniaJeannette
Jeannette Glass Company, Jeannette PennsylvaniaJohnstown
Pennsylvania Railroad Station, Johnstown PennsylvaniaMonessen
Pittsburgh Steel Company Monessen Works, Monessen PennsylvaniaPhiladelphia
Atwater Kent Manufacturing Company, Philadelphia Pennsylvania
Connie Mack Stadium - Shibe Park, Philadelphia Pennsylvania
Eastern State Penitentiary, Philadelphia Pennsylvania
Scott Wanamaker House, Philadelphia Pennsylvania
Strawberry Mansion, Philadelphia Pennsylvania
Walnut Lane Concrete Arch Bridge, Philadelphia PennsylvaniaPittsburgh
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 PennsylvaniaTower Hill Number 2, Luzerne
Tower Hill 2 Mine & Coke Ovens, Tower Hill PennsylvaniaWest Chester
Mayfield (Willaim Ebbs House), West Chester Pennsylvania