Private owner

Harper House (Augusta County, Virginia)
Harper House (Randolph County, North Carolina)
Harper J. Dininny House (Salt Lake County, Utah)
Harper Memorial Library (Blount County, Tennessee)
Harper--Chesser House (Williamson County, Texas)
Harper-Cosgrave Block (Muskingum County, Ohio)
Harpursville United Methodist Church (Broome County, New York)
Harraden, Edward, House (Essex County, Massachusetts)
Harrer Building (Cook County, Illinois)
Harriet and Charlie McNeil House (Bastrop County, Texas)
Harriet and Thomas Beare House (Grand Forks County, North Dakota)
Harriet Campbell-Taylor House (Chautauqua County, New York)
Harriet F. Rees House (Cook County, Illinois)
Harriet Funk House (Jefferson County, Kentucky)
Harriet M. Cornwell Tourist House (Richland County, South Carolina)
Harriet May Mills House (Onondaga County, New York)
Harriet Phillips Bungalow (Columbia County, New York)
Harriet S. Shepherd House (Beaver County, Utah)
Harriet Taylor Upton House (Trumbull County, Ohio)
Harriet Tubman Grave (Cayuga County, New York)
Harriet Tubman Home for the Aged (Cayuga County, New York)
Harriet Tubman House (Cayuga County, New York)
Harriett (Marion County, Indiana)
Harrietta Plantation (Charleston County, South Carolina)
Harriman School (Piscataquis County, Maine)
Harriman, Henry I., House (Middlesex County, Massachusetts)
Harrington (Somerset County, Maryland)
Harrington Block (Middlesex County, Massachusetts)
Harrington Hotel (St. Clair County, Michigan)
Harrington House (Middlesex County, Massachusetts)
Harrington House (Yamhill County, Oregon)
Harrington House (Windsor County, Vermont)
Harrington Machine Shop (Philadelphia County, Pennsylvania)
Harrington Street Historic District (Newberry County, South Carolina)
Harrington, Samuel, House (Middlesex County, Massachusetts)
Harrington, Theodore, House (Worcester County, Massachusetts)
Harrington--Smith Block (Hillsborough County, New Hampshire)
Harrington-Birchett House (Maricopa County, Arizona)
Harrington-Dewar House (Harnett County, North Carolina)
Harris & Ewing Photographic Studio (Washington, District of Columbia)
Harris Apartments (Salt Lake County, Utah)
Harris Arcade (Catawba County, North Carolina)
Harris Building (Philadelphia County, Pennsylvania)
Harris Building (Yamhill County, Oregon)
Harris Drug Store (Tom Green County, Texas)
Harris Farm (Essex County, Massachusetts)
Harris Hall (Washtenaw County, Michigan)
Harris House (Pulaski County, Arkansas)
Harris House (McCurtain County, Oklahoma)
Harris House (Pettis County, Missouri)
Harris House (Lancaster County, Nebraska)
Harris House (Iowa County, Wisconsin)
Harris House (Gallatin County, Montana)
Harris House (Pulaski County, Arkansas)
Harris Mill (Kent County, Rhode Island)
Harris Street Bridge (Bristol County, Massachusetts)
Harris Switch Tower, Pennsylvania Railroad (Dauphin County, Pennsylvania)
Harris Wagon and Carriage Shop (Jackson County, Iowa)
Harris Warehouse (Providence County, Rhode Island)
Harris, Jonathan Newton, House (New London County, Connecticut)
Harris, Nathan, House (Cumberland County, Maine)
Harris, William, House (Windham County, Vermont)
Harris--Borman House (Lyon County, Kansas)
Harris--Poindexter House and Store (Louisa County, Virginia)
Harris--Ramsey--Norris House (Brooks County, Georgia)
Harris--Tingey House (Davis County, Utah)
Harris-Banks House (Lowndes County, Mississippi)
Harris-Chilton-Ruble House (Howard County, Missouri)
Harris-Holden House (Lincoln County, Tennessee)
Harris-Merrick House (Worcester County, Massachusetts)
Harrisburg Avenue Tobacco Historic District (Lancaster County, Pennsylvania)
Harrisburg Cemetery (Dauphin County, Pennsylvania)
Harrisburg Odd Fellows Hall (Linn County, Oregon)
Harrisburg Polyclinic Hospital (Dauphin County, Pennsylvania)
Harrisburg Technical High School (Dauphin County, Pennsylvania)
Harrisburg-West End Historic District (Richmond County, Georgia)
Harrison Apartment Building (Washington, District of Columbia)
Harrison Brunk House (Polk County, Oregon)
Harrison Court Apartments (Multnomah County, Oregon)
Harrison DeLong House (Minnehaha County, South Dakota)
Harrison Dills House (Yakima County, Washington)
Harrison Grist Mill (St. Lawrence County, New York)
Harrison Hardie House (Milwaukee County, Wisconsin)
Historically significant Ernest Flagg designed stone masonry house
Harrison House (Washington County, Pennsylvania)
Harrison House (Williamson County, Tennessee)
Harrison Miller Farmhouse (Goodhue County, Minnesota)
Harrison National Bank (Harrison County, Ohio)
Harrison Queen House (Washington County, Missouri)
Harrison School (St. Louis, Missouri)
Harrison Stebbins House (Rock County, Wisconsin)
Harrison Stuckslager House (Linn County, Iowa)
Harrison, C. Lewis, House (Middlesex County, Massachusetts)
Harrison, Wallace K., Estate (Suffolk County, New York)
Harrison--Dennis House (Wharton County, Texas)
Harrison--Hastedt House (Colorado County, Texas)
Harrison-Gibson House (Muscogee County, Georgia)
Harrison-Landers House (Hamilton County, Ohio)
Harristown Historic District (Simpson County, Kentucky)
Harrisville Rural District (Cheshire County, New Hampshire)
Harriswood Crescent (Suffolk County, Massachusetts)
Harriton (Montgomery County, Pennsylvania)
Harrods Creek Historic District (Jefferson County, Kentucky)
Harry A. Crosley House (Washington County, Oregon)
Harry A. Keplinger House (Allen County, Indiana)
Harry and Lilly Phillips House (Mesa County, Colorado)
Harry and Louisiana Beall Paull Mansion (Brooke County, West Virginia)
Harry B. Merrihew Drugstore (Utah County, Utah)
Harry B. Walker House (Milwaukee County, Wisconsin)
High style Victorian Gothic residence with several steeply pitched gabled roofs
Harry Bailey House (Wilson County, Tennessee)
Harry C. and Jessie F. Franzheim House (Ohio County, West Virginia)
Harry C. Duncan House (Lake County, Florida)
Harry C. Keith House (Flathead County, Montana)
Harry C. Tinker House (Genesee County, Michigan)
Harry DeHaven House (Chester County, Pennsylvania)
Harry E. Fife House (Stark County, Ohio)
Harry E. Pierce House (Maricopa County, Arizona)
Harry E. Randall House (Cascade County, Montana)
Harry F. Legg House (Hennepin County, Minnesota)
Harry F. Wentz Studio (Tillamook County, Oregon)
Harry Fischel House (Greene County, New York)
Harry Fitzhugh Lee House (Wayne County, North Carolina)
Harry H. Nichols House (Cook County, Illinois)
Harry Hammerman House (St. Louis County, Missouri)
Harry Hurt Building (Miami-Dade County, Florida)
Harry L. Whited House (Jackson County, Oregon)
Harry May House (Ravalli County, Montana)
Harry Milton Levy House (Hamilton County, Ohio)
Harry N. Burhans House (Onondaga County, New York)
Harry Packer Mansion (Carbon County, Pennsylvania)
Harry S. McClelland House (Muskingum County, Ohio)
Harry Saxon House (Cochise County, Arizona)
Harry Smith House (Prince George's County, Maryland)
Harry T. Jones House (Seward County, Nebraska)
Harry T. Nicolai House (Multnomah County, Oregon)
Harry Vanderbilt Wurdemann House (King County, Washington)
Harry W. Bolens House (Ozaukee County, Wisconsin)
Harry W. Gray House (Arlington County, Virginia)
Harry W. Haumann House (Summit County, Utah)
Harry W. Jones House (Hennepin County, Minnesota)
Harry Walker House (Maricopa County, Arizona)
Harshaw Chapel and Cemetery (Cherokee County, North Carolina)
Harshaw-Stovall House (White County, Georgia)
Harshbarger House (Roanoke County, Virginia)
Harstine Island Community Hall (Mason County, Washington)
Hart Building (Yuba County, California)
Hart Building (Lycoming County, Pennsylvania)
Hart House (Sullivan County, New York)
Hart House (New Castle County, Delaware)
Hart House (York County, South Carolina)
Hart House (Orleans Parish, Louisiana)
Hart House (Essex County, Massachusetts)
Hart Store (Coconino County, Arizona)
Hart's Corner Historic District (Hartford County, Connecticut)
Hart's Drug Store (Erie County, Ohio)
Hart, Eleazer, House (Westchester County, New York)
Hart, Gen. William, House (Middlesex County, Connecticut)
Hart, Phoebe, House (Rockingham County, New Hampshire)
Hart, Timothy, House (Hartford County, Connecticut)
Hart-Hoch House (Mercer County, New Jersey)
Hartford & New Haven Railroad Depot (Hartford County, Connecticut)
Hartford & New Haven Railroad--Freight Depot (Hartford County, Connecticut)
Hartford Baptist Church and Cemetery (Washington County, New York)
Hartford Club (Hartford County, Connecticut)
Hartford Collegiate Institute (Lyon County, Kansas)
Hartford Colony (New London County, Connecticut)
Hartford Golf Club Historic District (Hartford County, Connecticut)
Hartford Library (Windsor County, Vermont)
Hartford Seminary (Ohio County, Kentucky)
Hartford Union Station (Hartford County, Connecticut)
Hartington Hotel (Cedar County, Nebraska)
Hartland (Greenbrier County, West Virginia)
Hartland (Fayette County, Kentucky)
Hartland Railroad Depot (Waukesha County, Wisconsin)
Hartley Building (St. Louis County, Minnesota)
Hartley Farms (Morris County, New Jersey)
Hartley House (Lexington County, South Carolina)
Hartley House (Harris County, Texas)
Hartley Sugar Camp (Itasca County, Minnesota)
Hartley-Rose Belting Company Building (Allegheny County, Pennsylvania)
Hartman Cider Press (Berks County, Pennsylvania)
Hartman Stock Farm Historic District (Franklin County, Ohio)
Hartman, William, Farmstead (Livingston County, New York)
Hartness House (Windsor County, Vermont)
Harton House (Faulkner County, Arkansas)
Hartshorn, Timothy, House (Middlesex County, Massachusetts)
Hartsville Passenger Station (Darlington County, South Carolina)
Hartville Hotel (Stark County, Ohio)
Hartwell B. Hyde House (Williamson County, Tennessee)
Hartwell House (Middlesex County, Massachusetts)
Hartwell, George H., House (Worcester County, Massachusetts)