| Museum | Location | County |
|---|
| 1719 Hans Herr House & Museum | Willow Street | Lancaster |
| 1803 House | Emmaus | Lehigh |
| 1852 Herr Family Homestead | Landisville | Lancaster |
| AACA Museum | Hershey | Dauphin |
| Abington Art Center | Jenkintown | Montgomery |
| Adams County Historical Society Museum | Gettysburg | Adams |
| Air Heritage Museum | Beaver Falls | Beaver |
| Albany Township Historical Society Museum | Trexler | Berks |
| Allegheny-Kiski Heritage Museum | Tarentum | Allegheny |
| Allegheny Portage Railroad National Historic Site | Gallitzin | Cambria |
| Allentown Art Museum | Allentown | Lehigh |
| Allison-Antrim Museum | Greencastle | Franklin |
| America On Wheels | Allentown | Lehigh |
| American Civil War Museum | Gettysburg | Adams |
| American Military Edged Weaponry Museum | Intercourse | Lancaster |
| American Golf Hall of Fame | Foxburg | Clarion |
| American Helicopter Museum & Education Center | West Chester | Chester |
| American Treasure Tour | Oaks | Montgomery |
| Americana Museum of Bird-in-Hand | Bird-in-Hand | Lancaster |
| Amish Experience | Bird-in-Hand | Lancaster |
| Amish Farm and House | Lancaster | Lancaster |
| Amy B. Yerkes Museum | Hatboro | Montgomery |
| Andalusia (Nicholas Biddle Estate) | Andalusia | Bucks |
| Antoine Dutot Museum & Gallery | Delaware Water Gap | Monroe |
| Appalachian Trail Museum | Gardners | Cumberland |
| Art Association of Harrisburg | Harrisburg | Dauphin |
| Asa Packer Mansion | Jim Thorpe | Carbon |
| Atlas Cement Company Memorial Museum | Northampton | Northampton |
| Aughinbaugh Gallery | Grantham | Cumberland |
| Bachmann Publick House | Easton | Northampton |
| Bahr's Mill | Gabelsville | Berks |
| Baker-Dungan Museum | Beaver | Beaver |
| Baker Mansion | Altoona | Blair |
| Baldwin-Reynolds House Museum | Meadville | Crawford |
| Barns-Brinton House | Chadds Ford | Delaware |
| Barton Street School | Lock Haven | Clinton |
| Battles Museums of Rural Life | Girard | Erie |
| Bayernhof Music Museum | O'Hara Township | Allegheny |
| Beaver Area Historical Museum | Beaver | Beaver |
| Beaver County Industrial Museum | Darlington | Beaver |
| Beaver Falls Historical Society Museum | Beaver Falls | Beaver |
| Bell School (Monroe County, Pennsylvania) | Hamilton Township | Monroe |
| Bellefonte Art Museum for Centre County | Bellefonte | Centre |
| Berks County Heritage Center | Reading | Berks |
| Berks History Center | Reading | Berks |
| Berman Museum of Art | Collegeville | Montgomery |
| Bible History Exhibits | Ronks | Lancaster |
| Big Mac Museum Restaurant | North Huntingdon | Westmoreland |
| Bill's Old Bike Barn | Bloomsburg | Columbia |
| Blooming Grove Museum | Blooming Grove | Pike |
| Boal Mansion Museum | Boalsburg | Centre |
| Boalsburg Heritage Museum | Boalsburg | Centre |
| Boyertown Area Historical Society | Boyertown | Berks |
| Boyertown Museum of Historic Vehicles | Boyertown | Berks |
| Braddock's Battlefield History Center | North Braddock | Allegheny |
| Bradford County Museum | Towanda | Bradford |
| Brandywine Battlefield Park | Chadds Ford | Delaware |
| Brandywine River Museum | Chadds Ford | Delaware |
| Broad Top Area Coal Miners Museum | Robertsdale | Huntingdon |
| Brown's Mill School | Greencastle | Franklin |
| Buhl House | Zelienople | Butler |
| Burnside Plantation | Bethlehem | Northampton |
| Burtner House | Natrona Heights | Allegheny |
| Bushy Run Battlefield | Penn Township | Westmoreland |
| Butler County Historical Society | Butler | Butler |
| Calder House Museum | Equinunk | Wayne |
| Caleb Pusey House | Upland | Delaware |
| Cambria County Historical Society Library and Museum | Ebensburg | Cambria |
| Carbondale Historical Society and Museum | Carbondale | Lackawanna |
| Carpenter Log House | Plum | Allegheny |
| Castanea Railroad Station | Castanea | Clinton |
| Catlin House | Scranton | Lackawanna |
| Centre County Library & Historical Museum | Bellefonte | Centre |
| Centre Furnace Mansion | State College | Centre |
| Central Pennsylvania African American Museum | Reading | Berks |
| Chadds Ford Historical Society | Chadds Ford | Delaware |
| Chambersburg Heritage Center | Chambersburg | Franklin |
| Chester County Historical Society Museum | West Chester | Chester |
| The Children's Museum, Pennsylvania | Bloomsburg | Columbia |
| Christiana Underground Railroad Center at Historic Zercher's Hotel | Christiana | Lancaster |
| Clarion University Art Gallery | Clarion | Clarion |
| Clearfield County Historical Society and Museum | Clearfield | Clearfield |
| Clifton House | Fort Washington | Montgomery |
| Collen Brook Farm | Upper Darby Township | Delaware |
| Colonial Pennsylvania Plantation | Media | Delaware |
| Columns Museum | Milford | Pike |
| Compass Inn Museum | Laughlintown | Westmoreland |
| Conestoga Area Historical Society Museum | Conestoga | Lancaster |
| Conrad Weiser Homestead | Womelsdorf | Berks |
| Coolspring Power Museum | Coolspring | Jefferson |
| Cooper's Shed Museum | Mount Joy | Lancaster |
| Cornwall Iron Furnace | Cornwall | Lebanon |
| Corry Area Historical Museum | Corry | Erie |
| Crayola Experience | Easton | Northampton |
| Cresco Station Museum | Cresco | Monroe |
| Cumberland County Historical Society Museum | Carlisle | Cumberland |
| Dale/Engle/Walker House | Lewisburg | Union |
| Daniel Boone Homestead | Birdsboro | Berks |
| Dave Mead Log Cabin | Meadville | Crawford |
| David Bradford House | Washington | Washington |
| David Wills House | Gettysburg | Adams |
| Da Vinci Science Center | Allentown | Lehigh |
| DeBence Antique Music World | Franklin | Venango |
| Delaware County Institute of Science | Media | Delaware |
| Demuth Museum | Lancaster | Lancaster |
| Depreciation Lands Museum | Allison Park | Allegheny |
| Donora Smog Museum | Donora | Washington |
| Dorflinger Glass Museum | White Mills | Wayne |
| Doylestown Historical Society | Doylestown | Bucks |
| Drake Well Museum | Titusville | Venango |
| Driebe Freight Station Art Gallery | Stroudsburg | Monroe |
| Duncan & Miller Glass Museum | Washington | Washington |
| Eagles Mere Museum | Eagles Mere | Sullivan |
| Earth and Mineral Sciences Museum and Art Gallery | State College | Centre |
| East Broad Top Railroad | Rockhill Furnace | Huntingdon |
| Eastern Museum of Motor Racing | York Springs | Adams |
| Eckley Miners' Village | Weatherly | Luzerne |
| Eddie's Toy Museum & Store | Sciota | Monroe |
| Edinboro Area Historical Society | Edinboro | Erie |
| Eisenhower National Historic Site | Gettysburg | Adams |
| Eldred World War II Museum | Eldred | McKean |
| Electric City Trolley Museum | Scranton | Lackawanna |
| Elizabeth Township Historical Society Museum | Boston | Allegheny |
| Endless Mountains War Memorial Museum | Sonestown | Sullivan |
| Ephrata Cloister | Ephrata | Lancaster |
| Erie Art Museum | Erie | Erie |
| Erie County History Center | Erie | Erie |
| Erie Maritime Museum | Erie | Erie |
| Evans-Mumbower Mill | Upper Gwynedd Township | Montgomery |
| Everhart Museum | Scranton | Lackawanna |
| expERIEnce Children's Museum | Erie | Erie |
| Explore & More | Gettysburg | Adams |
| Fallingwater | Bear Run | Fayette |
| Federal School | Haverford | Delaware |
| Finley House (Wayne, Pennsylvania) | Wayne | Montgomery |
| Firefighters Historical Museum | Erie | Erie |
| F. Julius Lemoyne House | Washington | Washington |
| Flatiron Building Heritage Center | Brownsville | Fayette |
| Fleetwood Area Historical Society Museum | Fleetwood | Berks |
| Fonthill | Doylestown | Bucks |
| Forest County History Center | Tionesta | Forest |
| Fort Bedford Museum | Bedford | Bedford |
| Fort Hunter Mansion | Harrisburg | Dauphin |
| Fort LeBoeuf Historical Society Museum | Waterford | Erie |
| Fort Ligonier | Ligonier | Westmoreland |
| Fort Necessity National Battlefield | Uniontown | Fayette |
| Fort Roberdeau | Altoona | Blair |
| Frank L. Melega Art Museum | Brownsville | Fayette |
| Freedman Gallery | Reading | Berks |
| French Azilum | Towanda | Bradford |
| Friends of the East Broad Top Museum | Robertsdale | Huntingdon |
| Friendship Hill National Historic Site | Point Marion | Fayette |
| Frost Entomological Museum | University Park | Centre |
| Fulton County Historical Society Museum | McConnellsburg | Fulton |
| Gallery at Penn College | Williamsport | Lycoming |
| Gallitzin Tunnels Park & Museum | Gallitzin | Cambria |
| Gen. Frederick Von Steuben Headquarters | Valley Forge | Chester |
| General Lee's Headquarters Museum | Gettysburg | Adams |
| George Taylor House | Catasauqua | Lehigh |
| Gettysburg National Military Park | Gettysburg | Adams |
| Gettysburg Railroad Station | Gettysburg | Adams |
| Glencairn Museum | Bryn Athyn | Montgomery |
| Golden Age Air Museum | Bethel | Berks |
| Goschenhoppen Folklife Museum | Green Lane | Montgomery |
| Graeme Park | Horsham | Montgomery |
| Grange Estate | Havertown | Delaware |
| Greater Hazleton Historical Society Museum | Hazleton | Luzerne |
| Greene County Historical Society Museum | Waynesburg | Greene |
| Green Hills Farm | Dublin | Bucks |
| Greenville Area Historical Society Museum | Greenville | Mercer |
| Greersburg Academy | Darlington | Beaver |
| Grey Towers National Historic Site | Dingman Township | Pike |
| Grove City Area Historical Society Museum | Grove City | Mercer |
| Haas Gallery of Art | Bloomsburg | Columbia |
| Haines Mill | Cetronia | Lehigh |
| Haines Shoe House | Hallam | York |
| Hall of Presidents Exhibit | Gettysburg | Adams |
| Hands-on House | Lancaster | Lancaster |
| Hanna's Town | Hannastown | Westmoreland |
| Hanover Area Historical Society Museum | Hanover | York |
| Hanover Fire Museum | Hanover | York |
| Hanover Junction Museum | Hanover | York |
| Harmony Museum | Harmony | Butler |
| Harris Switch Tower | Harrisburg | Dauphin |
| Harriton House | Bryn Mawr | Montgomery |
| Hartwood Mansion | Hampton Township | Allegheny |
| Heisey House Museum | Lock Haven | Clinton |
| Helfrich's Springs Grist Mill | Whitehall | Lehigh |
| Henry Antes House | Upper Frederick Township | Montgomery |
| Herbig Bakery | Bradford | McKean |
| Heritage Discovery Center | Johnstown | Cambria |
| Hershey-Derry Township Historical Society Museum | Hershey | Dauphin |
| Hershey Story | Hershey | Dauphin |
| Hershey's Chocolate World | Hershey | Dauphin |
| The Highlands | Fort Washington | Montgomery |
| Historic Fallsington | Fallsington | Bucks |
| Historic Langhorne Association | Langhorne | Bucks |
| Historic Schaefferstown | Schaefferstown | Lebanon |
| Historic Wrightsville Museum | Wrightsville | York |
| Historic Yellow Springs | Chester Springs | Chester |
| Historical Society of Berks County Museum | Reading | Berks |
| Hole in the Wall Puppet Theatre | Lancaster | Lancaster |
| Home Textile Tool Museum | Orwell | Bradford |
| Honesdale Fire Museum | Honesdale | Wayne |
| Hope Horn Gallery | Scranton | Lackawanna |
| Hope Lodge | Fort Washington | Montgomery |
| Hopewell Furnace National Historic Site | Elverson | Berks |
| Hornby School Museum | North East | Erie |
| Horse-drawn Carriage Museum | New Tripoli | Lehigh |
| Horseshoe Curve | Altoona | Blair |
| Houdini Museum | Scranton | Lackawanna |
| Hoyt Center for the Arts | New Castle | Lawrence |
| HUB-Roberson Galleries | State College | Centre |
| Hummelstown Area Historical Society Museum | Hummelstown | Dauphin |
| Hunter House Museum | Sunbury | Northumberland |
| Huntingdon County Transportation Museum | Huntingdon | Huntingdon |
| Hurry Hill Farm Maple Museum | Edinboro | Erie |
| ImaginAIRium | Spring City | Chester |
| Indenhofen Farm | Skippack | Montgomery |
| Indian Steps Museum | Airville | York |
| Isett Acres Museum | Huntingdon | Huntingdon |
| James A. Michener Art Museum | Doylestown | Bucks |
| James A. Michener Art Museum | New Hope | Bucks |
| Jefferson County History Center | Brookville | Jefferson |
| Jenny Wade House | Gettysburg | Adams |
| Jerry's Classic Cars and Collectibles Museum | Pottsville | Schuylkill |
| Jewish Museum of Eastern Pennsylvania | Pottsville | Schuylkill |
| The Jimmy Stewart Museum | Indiana | Indiana |
| Joanna Furnace Complex | Robeson Township | Berks |
| John A. Hermann Jr. Memorial Art Museum | Bellevue | Allegheny |
| John Brown House (Chambersburg, Pennsylvania) | Chambersburg | Franklin |
| John Brown Farm, Tannery & Museum | Richmond Township | Crawford |
| John Chads House | Chadds Ford | Delaware |
| John Harris-Simon Cameron Mansion | Harrisburg | Dauphin |
| John Joseph Henry House | Nazareth | Northampton |
| John McFadden Model Railroad Museum | Mercersburg | Franklin |
| John Sebastian Goundie House | Bethlehem | Lehigh |
| Johannes Mueller House | Lititz | Lancaster |
| Johnson-Shaw Stereoscopic Museum | Meadville | Crawford |
| Johnstown Children's Museum | Johnstown | Cambria |
| Johnstown Flood Museum | Johnstown | Cambria |
| Johnstown Flood National Memorial | South Fork | Cambria |
| Joseph Priestley House | Northumberland | Northumberland |
| Juniata College Museum of Art | Huntingdon | Huntingdon |
| Kemerer Museum of Decorative Arts | Bethlehem | Lehigh |
| Kentuck Knob | Stewart Township | Fayette |
| Kerr Memorial Museum | Oakmont | Allegheny |
| Kutztown Area Historical Society Museum | Kutztown | Berks |
| Lacawac | Lake Ariel | Wayne |
| Lackawanna Coal Mine Tour | Scranton | Lackawanna |
| Lake Shore Railway Museum | North East | Erie |
| Lancaster County Historical Society | Lancaster | Lancaster |
| Lancaster Mennonite Historical Society Museum | Lancaster | Lancaster |
| Lancaster Museum of Art | Lancaster | Lancaster |
| Lancaster Science Factory | Lancaster | Lancaster |
| Landis Valley Museum | Lancaster | Lancaster |
| Lawrence Cabin | Havertown | Delaware |
| Lawrence County Historical Society Museum | New Castle | Lawrence |
| Leechburg Area Museum and Historical Society | Leechburg | Armstrong |
| Leesport Lock House | Leesport | Berks |
| Lehigh University Art Galleries | Bethlehem | Northampton |
| Lehigh Valley Heritage Museum | Allentown | Lehigh |
| Lemon House | Cresson | Cambria |
| LeRoy Heritage Museum | Canton | Bradford |
| Liberty Bell Museum | Allentown | Lehigh |
| Lincoln Highway Experience | Latrobe | Westmoreland |
| Lincoln Train Museum | Gettysburg | Adams |
| Lititz Museum | Lititz | Lancaster |
| Little Buffalo State Park | Newport | Perry |
| Little Beaver Museum | Darlington | Beaver |
| Little Museum | Sterling Run | Cameron |
| Livingood Museum | Womelsdorf | Berks |
| Lock Ridge Furnace Museum | Alburtis | Lehigh |
| Lore Degenstein Gallery | Selinsgrove | Snyder |
| Lower Saucon Township Historical Society | Lower Saucon Township | Northampton |
| Luzerne County Museum | Wilkes-Barre | Luzerne |
| Mack Trucks Museum | Allentown | Lehigh |
| Macungie Institute | Macungie | Lehigh |
| Manheim Heritage Center | Manheim | Lancaster |
| Margaret R. Grundy Memorial Museum | Bristol | Bucks |
| Martin Guitar Museum | Nazareth | Northampton |
| Marywood University Art Galleries | Scranton | Lackawanna |
| Mascaro-Steiniger Turfgrass Museum | University Park | Centre |
| Matson Museum of Anthropology | State College | Centre |
| Mauch Chunk Museum | Jim Thorpe | Carbon |
| McCarl Industrial & Agricultural Museum of Beaver County | Darlington | Beaver |
| McCoy House Museum | Lewistown | Mifflin |
| McKeesport Regional History & Heritage Center | McKeesport | Allegheny |
| McMurtrie House Museum | Huntingdon | Huntingdon |
| Meadowcroft Rockshelter and Museum of Rural Life | Avella | Washington |
| Mechanicsburg Museum | Mechanicsburg | Cumberland |
| Mennonite Heritage Center | Harleysville | Montgomery |
| Mennonite Information Center | Lancaster | Lancaster |
| Mercer County Historical Society Museum | Mercer | Mercer |
| Mercer Museum | Doylestown | Bucks |
| Merrick Art Gallery | New Brighton | Beaver |
| Mid-Atlantic Air Museum | Reading | Berks |
| Mifflinburg Buggy Museum | Mifflinburg | Union |
| Millersburg Museum | Millersburg | Dauphin |
| Mill at Anselma | Chester Springs | Chester |
| Mill Grove | Audubon | Montgomery |
| Minshall House | Media | Delaware |
| Misericordia University Art Galleries | Dallas | Luzerne |
| Mister Ed's Elephant Museum | Orrtanna | Adams |
| Mixsell House Museum | Easton | Northampton |
| Moland House | Hartsville | Bucks |
| Montgomery House Museum | Danville | Montour |
| Moravian Museum | Bethlehem | Lehigh |
| Moravian Historical Society Museum | Nazareth | Northampton |
| Moravian Pottery and Tile Works | Doylestown | Bucks |
| Morgan Log House | Lansdale | Montgomery |
| Morton Morton House | Norwood | Delaware |
| Mount Joy Historical Society Museum | Mount Joy | Lancaster |
| Muncy Historical Society and Museum of History | Muncy | Lycoming |
| Munnell Run Farm | Mercer | Mercer |
| Museum of Indian Culture | Allentown | Lehigh |
| The Museum of Mourning Art | Drexel Hill | Delaware |
| Museum of the History of Delaware County | Chester | Delaware |
| Nain-Schober House | Bethlehem | Lehigh |
| National Canal Museum | Easton | Northampton |
| National Centre for Padro Pio | Barto | Berks |
| National Civil War Museum | Harrisburg | Dauphin |
| National Museum of the American Coverlet | Bedford | Bedford |
| National Toy Train Museum | Strasburg | Lancaster |
| National Watch and Clock Museum | Columbia | Lancaster |
| N. C. Wyeth House and Studio | Chadds Ford | Delaware |
| Ned Smith Center for Nature and Art | Millersburg | Dauphin |
| Nemacolin Castle | Brownsville | Fayette |
| New Berlin Heritage Museum | New Berlin | Union |
| New Holland Band Museum | New Holland | Lancaster |
| Newlin Mill Complex | Concord Township | Delaware |
| Nicholas Stoltzfus Homestead | Wyomissing | Berks |
| Nitre Hall | Havertown | Delaware |
| No. 9 Coal Mine & Museum | Lansford | Carbon |
| North East Museum | North East | Erie |
| North Museum of Natural History and Science | Lancaster | Lancaster |
| Oakes Museum | Grantham | Cumberland |
| Old Bedford Village | Bedford | Bedford |
| Old Caln Historical Society Museum | Caln Township | Chester |
| Old Dry Road Farm | Lower Heidelberg Township | Berks |
| Old Eagle School | Tredyffrin | Chester |
| Old Economy Village | Ambridge | Beaver |
| Old Jail Museum | Chambersburg | Franklin |
| Old Jail Museum | Jim Thorpe | Carbon |
| Old Jail Museum | Smethport | McKean |
| Old Line Museum | Delta | York |
| Old Mauch Chunk Model Train Display | Jim Thorpe | Carbon |
| Olin Art Gallery | Washington | Washington |
| Oliver Miller Homestead | South Park | Allegheny |
| Packwood House Museum | Lewisburg | Union |
| Palmer Museum of Art | State College | Centre |
| Palmerton Area Heritage Center | State College | Centre |
| Paper Mill House Museum | Newtown Township | Delaware |
| Parry Mansion Museum | New Hope | Bucks |
| Passavant House | Zelienople | Butler |
| Pasto Agricultural Museum | University Park | Centre |
| Paul R. Stuart Museum | Waynesburg | Greene |
| Payne Gallery | Bethlehem | Lehigh |
| Pennsbury Manor | Morrisville | Bucks |
| Penn State All-Sports Museum | State College | Centre |
| Penns Valley Area Historical Museum | Aaronsburg | Centre |
| Pennsylvania Anthracite Heritage Museum | Scranton | Lackawanna |
| Pennsylvania German Cultural Heritage Center | Kutztown | Berks |
| Pennsylvania Governor's Mansion | Harrisburg | Dauphin |
| Pennsylvania Longrifle Museum | Nazareth | Northampton |
| Pennsylvania Lumber Museum | Galeton | Potter |
| Pennsylvania Military Museum | Boalsburg | Centre |
| Pennsylvania Military College Museum | Chester | Delaware |
| Pennsylvania National Fire Museum | Harrisburg | Dauphin |
| Pennsylvania State Capitol | Harrisburg | Dauphin |
| Pennsylvania Trolley Museum | Washington | Washington |
| Pennsylvania Veterans Museum | Media | Delaware |
| Pennypacker Mills | Schwenksville | Montgomery |
| Peter Herdic Transportation Museum | Williamsport | Lycoming |
| Peter J. McGovern Little League Museum | South Williamsport | Lycoming |
| Peter Wentz Farmstead | Worcester | Montgomery |
| Phillips Museum of Art | Lancaster | Lancaster |
| Pioneer Tunnel Coal Mine & Steam Train | Ashland | Schuylkill |
| Piper Aviation Museum | Lock Haven | Clinton |
| Pithole City | Pithole | Venango |
| Pocono Indian Museum | Bushkill | Pike |
| Police Heritage Museum | York | York |
| Portage Station Museum | Portage | Cambria |
| Potter County Historical Society/Museum | Coudersport | Potter |
| Pottsgrove Manor | Pottsgrove | Montgomery |
| Philip P. Bliss Gospel Songwriters Museum | Rome | Bradford |
| Promised Land State Park | Blooming Grove | Pike |
| Quaint Corner Children's Museum | Altoona | Blair |
| Quiet Valley Living Historical Farm | Hamilton Township | Monroe |
| Rachel Carson Homestead | Springdale | Allegheny |
| Railroad Museum of Pennsylvania | Strasburg | Lancaster |
| Railroaders Memorial Museum | Altoona | Blair |
| Reading Area Fire-Fighters Museum | Reading | Berks |
| Reading Public Museum | Reading | Berks |
| Reading Railroad Heritage Museum | Hamburg | Berks |
| Renfrew Museum and Park | Waynesboro | Franklin |
| Richard Wall House | Elkins Park | Montgomery |
| Rivers of Steel | Homestead | Allegheny |
| Roadside America | Shartlesville | Berks |
| Robert Fulton Birthplace | Quarryville | Lancaster |
| Rock Ford Plantation | Lancaster | Lancaster |
| Rockhill Trolley Museum | Rockhill Furnace | Huntingdon |
| Rough and Tumble Engineers Historical Association | Kinzers | Lancaster |
| Rowley House Museum | Williamsport | Lycoming |
| Saint Nicholas Chapel and Museum | Beaver | Beaver |
| Sanderson Museum | Chadds Ford | Delaware |
| Samek Art Museum | Lewisburg | Union |
| Saylor Park Cement Industry Museum | Coplay | Lehigh |
| Sayre Historical Society Museum | Sayre | Bradford |
| Schwenkfelder Library & Heritage Center | Pennsburg | Montgomery |
| Schuylkill County Historical Society | Pottsville | Schuylkill |
| Scranton Iron Furnaces | Scranton | Lackawanna |
| Sculpted Ice Works Factory Tour & Ice Harvest Museum | Lakeville | Wayne |
| Seminary Ridge Museum | Gettysburg | Adams |
| Sewickley Heights History Center | Sewickley | Allegheny |
| Shippensburg Historical Society | Shippensburg | Franklin |
| Shippensburg University Fashion Archives and Museum | Shippensburg | Franklin |
| Shriver House Museum | Gettysburg | Adams |
| Sigal Museum | Easton | Northampton |
| Simpler Times Museum | Tidioute | Warren |
| Sinking Spring Historical Society & Heritage Park | Sinking Spring | Berks |
| Slate Belt Heritage Center | Bangor | Northampton |
| Slate Belt Museum | Mt. Bethel | Northampton |
| Slifer House Museum | Lewisburg | Union |
| Smock Heritage Museum | Smock | Fayette |
| Soldiers National Museum | Gettysburg | Adams |
| Somerset Historical Center | Somerset | Somerset |
| Sones Farm & Home Museum | Muncy | Lycoming |
| Sordoni Art Gallery | Wilkes-Barre | Luzerne |
| Southern Alleghenies Museum of Art | Altoona | Blair |
| Southern Alleghenies Museum of Art | Loretto | Cambria |
| Southern Alleghenies Museum of Art | Ligonier | Westmoreland |
| Southern Alleghenies Museum of Art | Johnstown | Cambria |
| Speaker's House | Trappe | Montgomery |
| Springfield Heritage Museum | Springfield | Delaware |
| Spring-Ford Area Historical Society Museum Complex | Royersford | Montgomery |
| Springfield Mills | Erdenheim | Montgomery |
| Springs Museum | Springs | Somerset |
| Square Tavern | Newtown Township | Delaware |
| State Museum of Pennsylvania | Harrisburg | Dauphin |
| Steamtown National Historic Site | Scranton | Lackawanna |
| Stover Mill Gallery | Erwinna | Bucks |
| Stoy Museum | Lebanon | Lebanon |
| Stroud Mansion | Stroudsburg | Monroe |
| Sturgeon House | Fairview | Erie |
| Sullivan County Historical Society Museum | Laporte | Sullivan |
| Summerseat | Morrisville | Bucks |
| Summit Hill Historical Society Museum | Summit Hill | Carbon |
| Sun Inn, Pennsylvania | Bethlehem | Lehigh |
| Susquehanna Art Museum | Harrisburg | Dauphin |
| Susquehanna County Historical Society | Montrose | Susquehanna |
| Susquehanna Depot Area Historical Society Museum | Susquehanna Depot | Susquehanna |
| Sutton-Ditz House | Clarion | Clarion |
| Suzanne H. Arnold Art Gallery | Annville | Lebanon |
| Swedish Log Cabin | Drexel Hill | Delaware |
| Swetland Homestead | Wyoming | Luzerne |
| Taylor Memorial Museum | Brockway | Jefferson |
| Temple Judea Museum | Elkins Park | Montgomery |
| Thomas Leiper Estate | Nether Providence Township | Delaware |
| Thomas Massey House | Broomall | Delaware |
| Thomas T. Taber Museum | Williamsport | Lycoming |
| Tioga Point Museum | Athens | Bradford |
| Tom Ridge Environmental Center | Erie | Erie |
| Tour-Ed Mine and Museum | Tarentum | Allegheny |
| Toy Soldier Museum | Cresco | Monroe |
| Trout Gallery | Carlisle | Cumberland |
| Trout Hall | Allentown | Lehigh |
| Troxell-Steckel House | Egypt | Lehigh |
| Troy Farm Museum | Troy | Bradford |
| Tyrone History Museum | Tyrone | Blair |
| Union City Historical Society Museum | Union City | Erie |
| University Museum of Indiana University of Pennsylvania | Indiana | Indiana |
| Upper Mill | Milford | Pike |
| U.S. Army Heritage and Education Center | Carlisle | Cumberland |
| Valley Forge National Historical Park | Valley Forge | Chester |
| Valley School Museum | Albion | Erie |
| Venango County Historical Society Museum | Franklin | Venango |
| Vicary Mansion | Freedom | Beaver |
| Victorian Vandergrift Museum and Historical Society | Vandergrift | Westmoreland |
| Vocal Group Hall of Fame | Sharon | Mercer |
| Wagner-Ritter House & Garden | Johnstown | Cambria |
| Wallace-Cross Mill | East Hopewell Township | York |
| Walnutport Canal & Locktenders House | Walnutport | Northampton |
| Washington Crossing Historic Park | Washington Crossing | Bucks |
| Watson-Curtze Mansion | Erie | Erie |
| Wattsburg Historical Society Museum | Wattsburg | Erie |
| Wayne County Historical Society Museum | Honesdale | Wayne |
| Waynesborough | Paoli | Chester |
| Weather Discovery Center | Punxsutawney | Jefferson |
| Western Pennsylvania Model Railroad Museum | Gibsonia | Allegheny |
| Westmoreland Museum of American Art | Greensburg | Westmoreland |
| West Overton Museums | Scottdale | Westmoreland |
| Wharton Esherick Museum | Malvern | Chester |
| Wheatland | Lancaster | Lancaster |
| Whitaker Center for Science and the Arts | Harrisburg | Dauphin |
| Widener University Art Gallery | Chester | Delaware |
| Wilbur Chocolate Factory & Candy Americana Museum | Lititz | Lancaster |
| Wilder Museum | Irvine | Warren |
| William Brinton 1704 House | West Chester | Delaware |
| William E. Swigart, Jr. Antique Automobile Museum | Huntingdon | Huntingdon |
| Williams Center Art Gallery | Easton | Northampton |
| Williams House (Paupack, Pennsylvania) | Paupack | Wayne |
| Windber Coal Heritage Center | Windber | Somerset |
| Wings of Freedom Aviation Museum | Willow Grove | Montgomery |
| Winters Heritage House Museum | Elizabethtown | Lancaster |
| Wolf Museum of Music and Art | Lancaster | Lancaster |
| Woodmont | Gladwyne | Montgomery |
| Woodville Plantation | Bridgeville | Allegheny |
| World of Scouting Museum | Valley Forge | Chester |
| Wright's Ferry Mansion | Columbia | Lancaster |
| Wyalusing Valley Museum | Wyalusing | Bradford |
| Wyoming County Historical Museum | Tunkhannock | Wyoming |
| York College Art Galleries | York | York |
| York County Heritage Trust | York | York |
| Zane Grey Museum | Lackawaxen | Pike |
| Zeigler House (Dalmatia, Pennsylvania) | Dalmatia | Northumberland |
| Zoellner Arts Center | Bethlehem | Northampton |
| Zoller Gallery | University Park | Centre |
