Pennsylvania - Criteria: C (architecture/engineering)
| Warrington Meetinghouse |
| Warrior Ridge Dam and Hydroelectric Plant |
| Warrior Run Presbyterian Church |
| Warwick Furnace/Farms |
| Warwick Mills |
| Warwick, The |
| Washington Armory |
| Washington Avenue Historic District |
| Washington County Courthouse |
| Washington County Jail |
| Washington, George, School |
| Washington Hose and Steam Fire Engine Company, No. 1 |
| Washington Memorial Chapel |
| Washington Square |
| Washington Square West Historic District |
| Washington Trust Company Building |
| Waterford Bourough Historic District |
| Waterford Covered Bridge |
| Waterloo Mills Historic District |
| Water Street District |
| Waterville Bridge |
| Watson-Curtze Mansion |
| Watson, Sally, House |
| Watsontown River Bridge |
| Waugh, Alexander P. and James S., House |
| Waverly Historic District |
| Wayne, Anthony, School |
| Wayne Hotel |
| Waynesboro Armory |
| Waynesburg Historic District |
| Way, Nicholas, House |
| WCAU Studios |
| Weaver, Henry, Farmstead |
| Weaver's Mill Covered Bridge |
| Weaver, Valentine, House |
| Weber-Weaver Farm |
| Webster Donora Bridge |
| Wee Grimmet |
| Wehr Covered Bridge |
| Weidenboerner, John E., House |
| Weidner Mill |
| Weiss Hall |
| Welkinweir |
| Welles, Ellen and Charles F., House |
| Wellsboro Armory |
| Wellsboro Historic District |
| Welsh-Emery House |
| Welsh, John, House |
| Welty's Mill Bridge |
| Wentz, John, House |
| Wentz, Peter, Homestead |
| Weona Park Carousel |
| Werner, William, House |
| Wertz Mill |
| Wertz's Covered Bridge |
| Wesley AME Zion Church |
| Wesley Building |
| West 21st Street Historic District |
| West Alexander Historic District |
| West Chester Boarding School for Boys |
| West Chester State College Quadrangle Historic District |
| West End-North Side Bridge |
| West End Wheelmen's Club |
| West Hickory Bridge |
| Westinghouse Air Brake Company General Office Building |
| Westinghouse, George, Memorial Bridge |
| Westinghouse High School |
| West Laurel Hill Cemetery |
| Westlawn |
| West Lawn |
| West Middletown Historic District |
| Westmont Historic District |
| Westmoreland County Courthouse |
| West Norristown Historic District |
| West Overton Historic District |
| West Park Place |
| West Philadelphia High School |
| West Philadelphia Streetcar Suburb Historic District |
| West Side Sanitarium |
| West Sixth Street Historic District |
| West Vincent Highlands Historic District |
| West Whiteland Inn |
| Wetherby-Hampton-Snyder-Wilson-Erdman Log House |
| Wetmore House |
| Wharton Furnace |
| Wheelen House |
| Whipple Dam State Park Day Use District |
| White Chimneys |
| Whitefield House and Gray Cottage |
| Whitehall Apartments |
| White Hall of Bristol College |
| White, Hannah, Log House |
| Whitehill-Gleason Motors |
| White Horse Farm |
| White Horse Historic District |
| White Horse Tavern |
| White Horse Tavern |
| White Horse Tavern |
| White House Inn |
| White, John, House |
Data from United States Park Service and Wikidata
