National Historic Landmark

Reliance Building (Cook County, Illinois)
RELIEF (lightship) (King County, Washington)
Remington, Frederic, House (Fairfield County, Connecticut)
Rendezvous Docking Simulator (Hampton, Virginia)
Renwick Museum (Washington, District of Columbia)
Resaca de la Palma Battlefield (Cameron County, Texas)
Rev. George B. Hitchcock House (Cass County, Iowa)
Revere Beach Reservation (Suffolk County, Massachusetts)
Revere, Paul, House (Suffolk County, Massachusetts)
Reynolds Homestead (Patrick County, Virginia)
Reynolds, Joseph, House (Bristol County, Rhode Island)
Reynolds-Morris House (Philadelphia County, Pennsylvania)
Rhea County Courthouse (Rhea County, Tennessee)
Rhode Island Statehouse (Providence County, Rhode Island)
Richard Nixon Birthplace (Orange County, California)
Richards, Ellen H. Swallow, House (Suffolk County, Massachusetts)
Richards, Theodore W., House (Middlesex County, Massachusetts)
Ringling Brothers Circus Headquarters (Sauk County, Wisconsin)
The home and winter quarters of the Ringling Brothers Circus, now home to the Wisconsin Historical Society's Circus World Museum.
Ringwood Manor (Passaic County, New Jersey)
Ripshin (Grayson County, Virginia)
Rising Sun Tavern (Fredericksburg, Virginia)
RittenhouseTown Historic District (Philadelphia County, Pennsylvania)
Riversdale (Prince George's County, Maryland)
Robert A. Millikan House (Cook County, Illinois)
Robert Barnwell Rhett House (Charleston County, South Carolina)
Robert Brewton House (Charleston County, South Carolina)
Robert Frost Farm (Addison County, Vermont)
Robert Fulton Birthplace (Lancaster County, Pennsylvania)
Robert M. LaFollette House (Dane County, Wisconsin)
Robert Russa Moton High School (Prince Edward County, Virginia)
Robert S. Abbott House (Cook County, Illinois)
Robert Simpson Woodward House (Washington, District of Columbia)
Robert Smalls House (Beaufort County, South Carolina)
Robert Toombs House (Wilkes County, Georgia)
Robert William Roper House (Charleston County, South Carolina)
Robeson, Paul, Home (New York County, New York)
Robidoux Pass (Scotts Bluff County, Nebraska)
Robinson, Edward Arlington, House (Kennebec County, Maine)
Rock Island Arsenal (Rock Island County, Illinois)
Rockefeller Center (New York County, New York)
Rockefeller, John D., Estate (Westchester County, New York)
Rocket Propulsion Test Complex (Hancock County, Mississippi)
Rockingham Meetinghouse (Windham County, Vermont)
Rogers Dry Lake (Kern County, California)
Rogers, John, Studio (Fairfield County, Connecticut)
Rokeby (Addison County, Vermont)
Roma Historic District (Starr County, Texas)
Rookery Building (Cook County, Illinois)
Rosalie (Adams County, Mississippi)
Rose Bowl, The (Los Angeles County, California)
Rose Hill (Seneca County, New York)
ROSEWAY (schooner) (Knox County, Maine)
Rotch, William J., Gothic Cottage (Bristol County, Massachusetts)
Rotunda, University of Virginia (Charlottesville, Virginia)
Round Church (Chittenden County, Vermont)
Royal Presidio Chapel (Monterey County, California)
Royall, Isaac, House (Middlesex County, Massachusetts)
Roycroft Campus (Erie County, New York)
Rumford, Count, Birthplace (Middlesex County, Massachusetts)
Russell, Samuel Wadsworth, House (Middlesex County, Connecticut)
Russian Bishop's House (Sitka Borough, Alaska)
Russian Fort (Kauai County, Hawaii)
Russian-American Building No. 29 (Sitka Borough, Alaska)
Rutherford B. Hayes House (Sandusky County, Ohio)
Ryman Auditorium (Davidson County, Tennessee)
S Bridge, National Road (Guernsey County, Ohio)
Caries the old National Road over Salt Fork Creek
Sabine Hall (Richmond County, Virginia)
SABINO (steamer) (New London County, Connecticut)
Sag Harbor Village District (Suffolk County, New York)
Saint-Gaudens National Historic Site (Sullivan County, New Hampshire)
Salem Tavern (Forsyth County, North Carolina)
Sam Houston House (Walker County, Texas)
Samuel Gompers House (Washington, District of Columbia)
Samuel Nixon House (Perquimans County, North Carolina)
Samuel T. Rayburn House (Fannin County, Texas)
San Bernardino Ranch (Cochise County, Arizona)
San Diego Mission Church (San Diego County, California)
San Diego Presidio (San Diego County, California)
San Estevan del Rey Mission Church (Valencia County, New Mexico)
San Francisco Bay Discovery Site (San Mateo County, California)
San Francisco Cable Cars (San Francisco County, California)
San Francisco Civic Center Historic District (San Francisco County, California)
San Francisco de Asis Mission Church (Taos County, New Mexico)
San Francisco Plantation House (St. John the Baptist Parish, Louisiana)
San Francisco Port of Embarkation, US Army (San Francisco County, California)
San Jacinto Battlefield (Harris County, Texas)
San Jose de Gracia Church (Taos County, New Mexico)
San Juan Bautista Plaza Historic District (San Benito County, California)
San Juan Island National Historic Site (San Juan County, Washington)
San Luis de Apalache (Leon County, Florida)
San Luis Rey Mission Church (San Diego County, California)
San Xavier del Bac (Pima County, Arizona)
Sanborn Field and Soil Erosion Plots (Boone County, Missouri)
Sandy Hook Light (Monmouth County, New Jersey)
Sanger, Margaret, Clinic (New York County, New York)
Santa Barbara Mission (Santa Barbara County, California)
Santa Fe Plaza (Santa Fe County, New Mexico)
Santa Monica Looff Hippodrome (Los Angeles County, California)
Sante Fe Trail Ruts (Ford County, Kansas)
Saratoga (Clarke County, Virginia)
Saratoga Spa State Park District (Saratoga County, New York)
Saturn V Dynamic Test Stand (Madison County, Alabama)
Saturn V Space Vehicle (Madison County, Alabama)
A fine example of the enormous vehicle that took Americans to the moon
Saugus Iron Works National Historic Site (Essex County, Massachusetts)
SAVANNAH (nuclear ship) (York County, Virginia)
Savannah Historic District (Chatham County, Georgia)
Sayler's Creek Battlefield (Amelia County, Virginia)
Schoonmaker Reef (Milwaukee County, Wisconsin)
Scotchtown (Hanover County, Virginia)
Scott Joplin House (St. Louis, Missouri)
Scott, Gen. Winfield, House (New York County, New York)
Scottish Rite Temple (Lancaster County, Nebraska)
Seabright Lawn Tennis and Cricket Club (Monmouth County, New Jersey)
Seal Island Historic District (Unspecified borough, Alaska)
Searights Tollhouse, National Road (Fayette County, Pennsylvania)
Sears, David, House (Suffolk County, Massachusetts)
Sears, Roebuck and Company Complex (Cook County, Illinois)
Second Bank of the United States (Philadelphia County, Pennsylvania)
Senator Francis G. Newlands House (Washoe County, Nevada)
Senator George William Norris House (Red Willow County, Nebraska)
Senator Stephen Benton Elkins House (Randolph County, West Virginia)
Sequoyah's Cabin (Sequoyah County, Oklahoma)
SERGEANT FLOYD (Woodbury County, Iowa)
Sergeant Floyd Monument (Woodbury County, Iowa)
Serpent Mound (Adams County, Ohio)
Seton Village (Santa Fe County, New Mexico)
Seventeen-hundred-and-four House (Delaware County, Pennsylvania)
Seventh Regiment Armory (New York County, New York)
Sever Hall, Harvard University (Middlesex County, Massachusetts)
Sewall-Belmont House National Historic Site (Washington, District of Columbia)
Shack Mountain (Albemarle County, Virginia)
Shadow Lawn (Monmouth County, New Jersey)
Shadows-on-the-Teche (Iberia Parish, Louisiana)
Shaker Village (Unspecified county, Maine)
Shawnee Mission (Johnson County, Kansas)
Shelburne Farms (Chittenden County, Vermont)
Sheldon Jackson School (Sitka Borough, Alaska)
Shelley House (St. Louis, Missouri)
Shenandoah--Dives Mill (San Juan County, Colorado)
Sheridan Inn (Sheridan County, Wyoming)
Sherman, William Watts, House (Newport County, Rhode Island)
Shiloh Indian Mounds Site (Hardin County, Tennessee)
Shirley (Charles City County, Virginia)
Shirley-Eustis House (Suffolk County, Massachusetts)
Shot Tower (Baltimore, Maryland)
SHOWBOAT MAJESTIC (Hamilton County, Ohio)
Siege and Battle of Corinth (Alcorn County, Mississippi)
Sierra Bonita Ranch (Unspecified county, Arizona)
Silverton Historic District (San Juan County, Colorado)
Simmons-Edwards House (Charleston County, South Carolina)
Sinclair Lewis Boyhood Home (Stearns County, Minnesota)
Sinclair, Harry F., House (New York County, New York)
Single Brothers' House (Forsyth County, North Carolina)
Sion Hill (Harford County, Maryland)
Sitka Spruce Plantation (Unspecified borough, Alaska)
Sixteenth Street Baptist Church (Jefferson County, Alabama)
Skyline Drive Historic District (Unspecified county, Virginia)
Sloss Blast Furnace Site (Jefferson County, Alabama)
Smith, Alfred E., House (New York County, New York)
Smithfield Street Bridge (Allegheny County, Pennsylvania)
Two-span lenticular through truss bridge over Monongahela River on Smithfield Street in Pittsburgh
Smithsonian Building (Washington, District of Columbia)
Snee Farm-Charles Pinckney National Historic Site (Charleston County, South Carolina)
Socialist Labor Party Hall (Washington County, Vermont)
Soho Historic District (New York County, New York)
Soldiers' Home Reef (Milwaukee County, Wisconsin)
Sonoma Plaza (Sonoma County, California)
Sotterley (St. Mary's County, Maryland)
Soudan Iron Mine (St. Louis County, Minnesota)
Sousa, John Philip, House (Nassau County, New York)
South Carolina State Hospital, Mills Building (Richland County, South Carolina)
South Carolina Statehouse (Richland County, South Carolina)
South Pass (Fremont County, Wyoming)
Southern National Bank (Jefferson County, Kentucky)
Southern Pacific Railroad Station (Yolo County, California)
Space Flight Operations Facility (Los Angeles County, California)
Space Launch Complex 10 (Santa Barbara County, California)
Spacecraft Magnetic Test Facility (Prince George's County, Maryland)
Spanish Governor's Palace (Bexar County, Texas)
Speedwell Village--The Factory (Morris County, New Jersey)
Spence's Point (Westmoreland County, Virginia)
Spencer Park Dentzel Carousel (Cass County, Indiana)