Built 1799

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Abigail Adams Smith Museum (New York County, New York)
Archibald Gracie Mansion (New York County, New York)
Ash Lawn-Highland (Albemarle County, Virginia)
Barzillai Weeks House (Barnstable County, Massachusetts)
Beardslee Farm (Otsego County, New York)
Belmont (Loudoun County, Virginia)
Blennerhassett Island Historic District (Wood County, West Virginia)
Bryant, William Cullen, Homestead (Hampshire County, Massachusetts)
Canewood Farm (Jessamine County, Kentucky)
Capitol Hill Historic District (Washington, District of Columbia)
Capt. Jonathan Stone House (Washington County, Ohio)
Cedar Grove (Baltimore, Maryland)
Chepachet Village Historic District (Providence County, Rhode Island)
Christopher Erb House (Carroll County, Maryland)
Compass Inn (Westmoreland County, Pennsylvania)
Cornell--Randall--Bailey Roadhouse (Providence County, Rhode Island)
Cutler Homestead (Morris County, New Jersey)
East Center City Commercial Historic District (Philadelphia County, Pennsylvania)
Edgehill (Albemarle County, Virginia)
Edwards-Franklin House (Surry County, North Carolina)
Ellicott Stone (Mobile County, Alabama)
Elm Hill Farm (Kennebec County, Maine)
Enoch Kelsey House (Hartford County, Connecticut)
Fairfax County Courthouse (Fairfax, Virginia)
First Congregational Church of Boscawen (Merrimack County, New Hampshire)
Greenwich Village Historic District (New York County, New York)
How Houses (Cumberland County, Maine)
How, Daniel, House (Cumberland County, Maine)
Jacob Isett House and Store (Blair County, Pennsylvania)
John Steele House (Rowan County, North Carolina)
John Williams House (Cumberland County, Pennsylvania)
Julius Blackburn House (Scott County, Kentucky)
Lake View Cemetery (Yates County, New York)
Lancaster County House of Employment (Lancaster County, Pennsylvania)
Lazaretto, The (Delaware County, Pennsylvania)
Martin House (Bristol County, Massachusetts)
Mercer Log House (Greene County, Ohio)
Nicholas Jarrot Mansion (St. Clair County, Illinois)
Nichols House (Washington County, Vermont)
Oakley Plantation House (West Feliciana Parish, Louisiana)
Octagon, The (Washington, District of Columbia)
Old Russell County Courthouse (Russell County, Virginia)
Old Sitka Site (Sitka Borough, Alaska)
Perkiomen Bridge (Montgomery County, Pennsylvania)
Closed-spandrel arch bridge over Perkiomen Creek on Ridge Pike in Collegeville, Pennsylvania
Peter A. Hilton House (Schoharie County, New York)
Philemon Sage House (Berkshire County, Massachusetts)
Purchase--Ferre House (Hampden County, Massachusetts)
Reed Gold Mine (Cabarrus County, North Carolina)
Rural Mount (Hamblen County, Tennessee)
Samuel W. Seeley House (Cumberland County, New Jersey)
Sargent House (Pike County, Ohio)
Once an Underground Railroad Station
Shiloh Church (Newport County, Rhode Island)
South Schraalenburgh Church (Bergen County, New Jersey)
Spring Hill Farm (Grafton County, New Hampshire)
St. George's Protestant Episcopal Church (St. Mary's County, Maryland)
Stagville (Durham County, North Carolina)
Stonehaven (Delaware County, Pennsylvania)
Talbot Hall (Norfolk, Virginia)
Ulmer, George, House (Waldo County, Maine)
Upper Greenwich Friends Meetinghouse (Gloucester County, New Jersey)
Washingtonian Hall (Broome County, New York)
Weidner Rock House (Catawba County, North Carolina)
West School (Middlesex County, Massachusetts)
William and Agnes Gilkerson Farm (Caledonia County, Vermont)
Woodlawn Plantation (Fairfax County, Virginia)
Zion United Church of Christ (Cumberland County, Pennsylvania)