Massachusetts - Significance region: National
| Adams Academy |
| Adams-Crocker-Fish House |
| Adams, John, Birthplace |
| Adams, John Quincy, Birthplace |
| Adams National Historic Site |
| ADVENTURE (schooner) |
| African Meetinghouse |
| Alden, John and Priscilla, Family Sites |
| All Saints' Church |
| American Antiquarian Society |
| Ames Building |
| Ancient Burying Ground |
| Anderson, Larz, Park Historic District |
| Angier, John B., House |
| Annisquam Harbor Light Station |
| Appleton, Nathan, Residence |
| Arcade Building |
| Arnold Arboretum |
| Atherton Bridge |
| Austin Hall |
| Ayer, Frederick, Mansion |
| Back Bay Historic District |
| Bailey House |
| Baker, Nathaniel, House |
| Baker's Island Light Station |
| Balch, John, House |
| Baldwin, Loammi, Mansion |
| Baldwin, Maria, House |
| Barrett, Col. James, Farm |
| Barton, Clara, Homestead |
| Beach-Knapp District |
| Beacon Hill Historic District |
| Beaconsfield Terraces Historic District |
| Beacon Street Historic District |
| Beacon, The |
| Bearse, Capt. Oliver, House |
| Beauport |
| Beauport |
| Bellamy, Edward, House |
| Birkhoff, George D., House |
| Boardman House |
| Boston African American National Historic Site |
| Boston Athenaeum |
| Boston Common |
| Boston Common and Public Garden |
| Boston Edison Electric Illuminating Company |
| Boston Fish Pier Historic District |
| Boston Light |
| Boston Manufacturing Company |
| Boston National Historical Park |
| Boston National Historical Park |
| Boston Naval Shipyard |
| Boston Public Garden |
| Boston Public Library |
| Boston Young Men's Christian Union |
| Bowditch, Nathaniel, House |
| Bowditch, William Ingersoll, House |
| Boylston Building |
| Brandegee Estate |
| Brandeis, Louis, House |
| Brant Point Light Station |
| Bridgman, Percy, House |
| Brook Farm |
| Brown's Manor |
| Bryant, William Cullen, Homestead |
| Buckman Tavern |
| Building at 30-34 Station Street |
| Bunker Hill Monument |
| Burgess, Thornton W., House |
| Burnham, David, House |
| Burnham-Patch House |
| Butler Flats Light Station |
| Cabot, Lewis, Estate |
| Caldwell Block |
| Calef, Dr. John, House |
| Cambridge Common Historic District |
| Candler Cottage |
| Capen, Parson, House |
| Captain R. B. Forbes House |
| Carney, Sgt. William H., House |
| Carpenter Center for the Visual Arts |
| Castle Hill |
| Central Congregational Church |
| Charles Playhouse |
| Chase, Lemuel B., House |
| Chelmsford Glass Works' Long House |
| Chestnut Hill Historic Distric |
| Chestnut Street District |
| Child, Isaac, House |
| Christ Church |
| Coast Guard Motor Lifeboat CG 36500 |
| Coffin, Jethro, House |
| Cole's Hill |
| Concord Monument Square-Lexington Road Historic District |
| Converse Memorial Building |
| Coolidge, Calvin, House |
| Corey, Timothy, House No. 1 |
| Corey, Timothy, House No. 2 |
| Corky Row Historic District |
| Cotuit Historic District |
Data from United States Park Service and Wikidata
