All - Architectural style - modern architecture
| Patrick, Dr. James. House |
| Payson House at Thornhurst |
| Peavey Plaza |
| Peerless Coal Company Store |
| Penhaligen, Charles and Mary Kempf, House |
| Pennsylvania State Office Building |
| Perry, Norman and Marion, House |
| Peterson, Seth, Cottage |
| Pet Plaza |
| Philadelphia Naval Shipyard Historic District |
| Phoenix Life Insurance Company Building |
| Phoenix Towers |
| Pike, Robert and Barbara, House |
| Pillsbury Summer House |
| Pine Bluff Civic Center |
| Pioneer Oil Company Filling Station |
| Pioneer Theater-Auditorium |
| Plaza House Apartments |
| Plaza Towers |
| Plymouth Place |
| Ponce YMCA Building |
| Pond Creek Masonic Lodge #125 |
| Poor, Henry Varnum, House |
| Porter Hotel |
| Port Royal School |
| Powell, Jesse, Towers |
| Prairie Du Chien Post Office |
| President's House |
| Priester Building, The |
| Proctor and Gamble Baltimore Plant |
| Public Library of Enid and Garfield County |
| Racine County Courthouse |
| Ramada House |
| Rapides Parish Library |
| Ravenna Motor Vehicle Service Building |
| Rayfiel, David, House |
| Reading Hardware Company |
| Regan, John, American Legion Hall |
| Register and Tribune Building |
| Reinke, Mr. and Mrs. Robert C., House |
| Remington Rand Building |
| Republic National Bank |
| Revere Quality Institute House |
| Rhode Island State Airport Terminal |
| Rice, Richard and Helen, House |
| Roberts Chevrolet |
| Robinson, Florence, Cottage |
| Rockefeller Center |
| Rogers, Will, Memorial Center |
| Rothko Chapel |
| Royal Tire Service Inc. Building |
| Roytek, Richard, House |
| Rugg Elementary School |
| Ruleton School |
| Russellville Armory |
| Ruth, Harold and Marion, House |
| Sacred Heart Church |
| Saint Matthew Parish |
| San Diego Veterans' War Memorial Building-Balboa Park |
| San Francisco Art Institute |
| Santa Fe Depot |
| Schindler, R. M., House |
| Scott and Roberts Dry Cleaning Plant, Office, and Store |
| Scott Commercial Building |
| Sea Foam Motel |
| Seaholm Power Plant |
| Segraves, Warren, House |
| Sentinel Island Light Station |
| Seton, Elizabeth Ann, Hospital |
| Shaheen-Goodfellow Weekend Cottage |
| Shawano Post Office |
| Sheldon Memorial Art Gallery |
| Sieroty House |
| Silver Dome Ballroom, The |
| Sinatra, Frank, House |
| Sinclair Building |
| Sirna, Anthony and Allison, Studio |
| Smith, LeRoy, House |
| SMUD Headquarters Building |
| Snow, C.W., & Company Warehouse |
| Somerset Armory |
| Southern Stove Works, Manchester |
| S. Pfeiffer Manufacturing Company Headquarters |
| Springfield Center Elementary School |
| Squibb, E.R. and Sons, Building |
| S.R. Crown Hall |
| St. Augustine's Episcopal Church |
| Steamboat Rock Consolidated Schools Building |
| Stein House |
| St. Elizabeth Hospital |
| Stenzel, R.O. & Company, Warehouse |
| Stevens House |
| St. John's Lutheran Church |
| Stock, Paul, House |
| Stonebrook |
| Storey Gymnasium |
| Stradal House |
| Structural Science Building |
| Sturgeon Bay Post Office |
| Superior Oil Company Building |
Data from United States Park Service and Wikidata
