Pennsylvania - Criteria: A (event)
| Racoon Creek RDA |
| Railroad Borough Historic District |
| Ralston Freeman Covered Bridge |
| Ramcat Historic District |
| Ramp Covered Bridge |
| Ravensburg State Park |
| Reading Company Grain Elevator |
| Reading-Halls Station Bridge |
| Reading Hardware Company |
| Reading Hardware Company Butt Works |
| Reading Knitting Mills |
| Reading Railroad Freight Station |
| Reading Railroad Passenger Station-Tamaqua |
| Reading Railroad Pottstown Station |
| Reading Railroad Station |
| Reading Terminal and Trainshed |
| Real Estate Building |
| Rebersburg Historic District |
| Red Covered Bridge |
| Red Hill Church and School |
| Red Hill Historic District |
| Red Lion Borough Historic District |
| Red Run Covered Bridge |
| Red Run Lodge |
| Reiff Farm |
| Reilly Brothers and Raub Building |
| Reppert-Gabler House |
| Rex Covered Bridge |
| Reymer Brothers Candy Factory |
| Rhoads Homestead |
| Rice Covered Bridge |
| Rice-Pennebecker Farm |
| Rice's Landing Historic District |
| Richards Covered Bridge |
| Richardson, Joseph, House |
| Rich-McCormick Woolen Factory |
| Ricketts, Clemuel, Mansion |
| Ridge Avenue Farmers' Market |
| Ridge Road Bridge, Stewartstown Railroad |
| Ridge Valley Rural Historic District |
| Ridgewood Farm |
| Ridgway Armory |
| Ridgway Historic District |
| Riegel Covered Bridge No. 6 |
| Rieser Mill |
| Rieser-Shoemaker Farm |
| Ringland Tavern |
| Rishel Covered Bridge |
| Rittenhouse, David, Junior High School |
| Rittenhouse Square |
| RittenhouseTown Historic District |
| River Bend Farm |
| Riverside Farm |
| Riverside Hotel |
| River Street Historic District |
| Roaring Spring Historic District |
| Robb Farm |
| Roberts and Mander Stove Company Buildings |
| Robertsdale Historic District |
| Robesonia Furnace Historic District |
| Robinson House |
| Rock Creek-White Run Union Hospital Complex |
| Rock Hill Farm |
| Rockland Furnace |
| Rockville Bridge |
| Rocky Spring Presbyterian Church |
| Rodef Shalom Temple |
| Rohrbach Covered Bridge No. 24 |
| Roosevelt, Theodore, Junior High School |
| Rose Valley Historic District |
| Ross, Frank L., Farm |
| Ross Furnace |
| Roughwood |
| Rowland House |
| Rowland Theater |
| Royal Theater |
| Royer, Daniel, House |
| Royer-Nicodemus House and Farm |
| Rupert Covered Bridge No. 56 |
| Rush House |
| Ruter Hall |
| Ryot Covered Bridge |
| Salem Crossroads Historic District |
| Sally Ann Furnace Complex |
| Saltsburg Historic District |
| Salvation Army Building, The |
| Sanatoga Union Sunday School |
| Sandy Hill Tavern |
| Saturday Club |
| Sauck's Covered Bridge |
| Saville Covered Bridge |
| Sawhill Covered Bridge |
| """S"" Bridge" |
| Scenery Hill Historic District |
| Schellsburg Historic District |
| Schenley Farms Historic District |
| Schenley High School |
| Schenley Park |
| Scherer, Frank C., Wagon Works |
| Schiller Elementary School |
Data from United States Park Service and Wikidata
