Matches in DBpedia 2014 for { ?s ?p <http://dbpedia.org/resource/Category:Historic_American_Engineering_Record_in_Pennsylvania> . }
- Laurel_Hill_Furnace subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Lehigh_Canal subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Letterkenny_Army_Depot subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Liberty_Bridge_(Pittsburgh) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Lilly_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Lincoln_Highway subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- List_of_Erie_Railroad_structures_documented_by_the_Historic_American_Engineering_Record subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- List_of_bridges_documented_by_the_Historic_American_Engineering_Record_in_Pennsylvania subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- List_of_tunnels_documented_by_the_Historic_American_Engineering_Record_in_Pennsylvania subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Little_Equinunk_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Loux_Covered_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Mammoth,_Pennsylvania subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Manayunk_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Manchester_Bridge_(Pittsburgh) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Market_Street_Bridge_(Harrisburg,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Market_Street_Bridge_(Wilkes-Barre,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Market–Frankford_Line subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Mascot_Roller_Mills subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- McClay's_Twin_Bridge_(East) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- McClay's_Twin_Bridge_(West) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- McConnell's_Mill_Covered_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- McKees_Rocks_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Monongahela_Incline subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Moravian_Pottery_and_Tile_Works subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Morrisville–Trenton_Railroad_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Neuweiler_Brewery subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- New_Cumberland_Defense_Depot subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- New_Geneva_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- New_Kensington_Production_Works_Historic_District subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Northampton_Street_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Northeast_Corridor subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Ohio_Connecting_Railroad_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Oil_City_Pennsylvania_Railroad_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- PRR_Port_Perry_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Panther_Hollow_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Peacock's_Lock_Viaduct subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pennsylvania_Canal_(Delaware_Division) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pennsylvania_Canal_(West_Branch_Division) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pennsylvania_Furnace_Mansion subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pennsylvania_Railroad,_Connecting_Railway_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pennsylvania_Railroad_Old_Bridge_over_Standing_Stone_Creek subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Perkasie_Tunnel subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Perkiomen_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia,_Wilmington_and_Baltimore_Railroad_Bridge_No._1 subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia_&_Reading_Railroad_Bridge_(Harrisburg,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia_Gas_Works subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia_Naval_Shipyard subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia_and_Reading_Railroad,_Bridge_at_West_Falls subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Philadelphia_and_Reading_Railroad,_Schuylkill_River_Viaduct subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Phoenix_Iron_Works_(Phoenixville,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pine_Grove_Covered_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pithole_Stone_Arch_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pittsburgh_&_Steubenville_Extension_Railroad_Tunnel subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pittsburgh_and_Castle_Shannon_Railroad subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Pleasantville_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Plunketts_Creek_Bridge_No._3 subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Point_Bridge_(Pittsburgh) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Rachel_Carson_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Reading-Halls_Station_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Reading_Terminal subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Revloc_Historic_District subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Riegelsville_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Roberto_Clemente_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Rockville_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Roebling's_Delaware_Aqueduct subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Runk_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- SS_United_States subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- S_Bridge_(Womelsdorf,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Safe_Harbor_Trestle subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Sand_Patch_Grade subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Schuylkill_Canal subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Scranton_Army_Ammunition_Plant subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Selinsgrove_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Sewickley_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Shade_Furnace_Archaeological_District subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Shippingport_Atomic_Power_Station subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Skew_Arch_Bridge_(Reading,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Skippack_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Slickville_Historic_District subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Smithfield_Street_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Smithton_Low-Level_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Spring_Garden_Street_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Standard_Shaft,_Pennsylvania subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Staple_Bend_Tunnel subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Star_Junction,_Pennsylvania subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Starrucca_Viaduct subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- State_Street_Bridge_(Harrisburg,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Stone_Bridge_(Johnstown,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Strawberry_Mansion_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- The_Coffee_Pot_(Bedford,_Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Thirty-third_Street_Bridge_in_Philadelphia subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Three_Sisters_(Pittsburgh) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Tobyhanna_Army_Depot subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Tunkhannock_Viaduct subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- U.S._Steel subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- USS_Olympia_(C-6) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Union_Canal_(Pennsylvania) subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- University_Avenue_Bridge subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Valley_Forge_National_Historical_Park subject Category:Historic_American_Engineering_Record_in_Pennsylvania.
- Valley_Road_Bridge,_Stewartstown_Railroad subject Category:Historic_American_Engineering_Record_in_Pennsylvania.