New Hampshire - Criteria: C (architecture/engineering)
| Abbot House |
| Acre (The) |
| Acworth Congregational Church |
| Acworth Silsby Library |
| Adams, Dr. Daniel, House |
| Adams Farm |
| Adams, John, Homestead-Wellscroft |
| Adams Memorial Building |
| Aldworth Manor |
| Allenstown Meeting House |
| Allison, Capt. Samuel, House |
| All Saints' Church |
| Alton Bay Railroad Station |
| Amherst Village Historic District |
| Amory-Appel Cottage |
| Amory Ballroom |
| Amory House |
| Appleton Farm |
| Appleton-Hannaford House |
| Armstrong Memorial Building |
| Asbury United Methodist Church |
| Ashland Gristmill and Dam |
| Ashland Junior High School |
| Ashland Railroad Station |
| Ashland Town Hall |
| Ash Street School |
| Ashuelot Covered Bridge |
| Athens Building |
| Atkinson Academy School |
| Atlantic Heights Development |
| Back River Farm |
| Backside Inn |
| Ballou-Newbegin House |
| Bancroft, Timothy, House |
| Baptist New Meeting House |
| Barnes, Jonathan, House |
| Bartlett-Cushman House |
| Bartlett Roundhouse |
| Bath Covered Bridge |
| Bay Meeting House and Vestry |
| Beal, Persia, House |
| Beck, Samuel, House |
| Bedell Covered Bridge |
| Bedford Presbyterian Church |
| Bedford Town Hall |
| Beech Hill |
| Beech Hill Summer Home District |
| Belmont Public Library |
| Bement Covered Bridge |
| Bemis, Elbridge G., House |
| Bemis, George, House |
| Benedict House |
| Bennington Village Historic District |
| Birchwood Inn |
| Blossom Hill and Calvary Cemeteries |
| Blow-Me-Down Covered Bridge |
| Blow-Me-Down Grange |
| Bog Bridge |
| Bolduc Block |
| Boscawen Academy and Much-I-Do-Hose House |
| Boscawen Public Library |
| Brackett House |
| Bradford Center Meetinghouse |
| Bradford Town Hall |
| Bradley, Stephen Rowe, House |
| Brewster Memorial Hall |
| Brick Store |
| Bridges, H. Styles, House |
| Bristol Town Hall |
| Brookfield Town Hall |
| Buckminster-Kingsbury Farm |
| Burford House |
| Burgess, George E., School-Notre Dame High School |
| Burleigh Brae and Webster Boathouse |
| Burpee Farm |
| Burt-Cheney Farm |
| Busiel, John W., House |
| Busiel-Seeburg Mill |
| Cabot, Louis, House |
| Cabot, T.H., Cottage |
| Camp Carnes |
| Camp Ossipee |
| Canaaan Meetinghouse |
| Canaan Chapel |
| Canaan Street Historic District |
| Canterbury Shaker Village |
| Carleton Bridge |
| Carpenter and Bean Block |
| Carpenter, Frank Pierce, House |
| Carr, Daniel, House |
| Carroll County Court House |
| Centennial Hall |
| Center Meetinghouse |
| Center Sandwich Historic District |
| Central Business District |
| Central Square Historic District |
| Centre Congregational Church |
| Centre Harbor Village Historic District |
| Centre Village Meeting House |
| Chamberlin House |
Data from United States Park Service and Wikidata
