Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Beaman Memorial Public Library | Building | 151 | Worcester | 42 21 54 N | 071 47 01 W |
| Beatley Library | Building | 5 | Suffolk | 42 20 23 N | 071 06 03 W |
| Beauport | Building | 1 | Essex | 42 35 55 N | 070 39 28 W |
| Beauport Museum | Building | 10 | Essex | 42 35 22 N | 070 39 40 W |
| Becket Arts Center | Building | 375 | Berkshire | 42 19 51 N | 073 05 03 W |
| Becket Town Hall | Building | 372 | Berkshire | 42 20 01 N | 073 05 12 W |
| Bedford Free Public Library | Building | 53 | Middlesex | 42 29 32 N | 071 16 59 W |
| Belchertown Town Hall | Building | 185 | Hampshire | 42 16 37 N | 072 24 03 W |
| Belfer Building | Building | 10 | Middlesex | 42 22 17 N | 071 07 18 W |
| Bellingham Town Offices | Building | 93 | Norfolk | 42 05 08 N | 071 28 21 W |
| Belmont Public Library | Building | 14 | Middlesex | 42 23 41 N | 071 10 27 W |
| Belmont Townhall | Building | 28 | Middlesex | 42 23 47 N | 071 10 36 W |
| Bemis Building | Building | 3 | Middlesex | 42 21 37 N | 071 05 16 W |
| Bemis Hall | Building | 63 | Hampden | 42 06 02 N | 072 33 27 W |
| Bendetson Hall | Building | 50 | Middlesex | 42 24 28 N | 071 07 12 W |
| Benton Branch Belmont Public Library | Building | 53 | Middlesex | 42 22 51 N | 071 10 11 W |
| Berean Tennis Center | Building | 4 | Middlesex | 42 22 05 N | 071 07 49 W |
| Berkeley Building | Building | 20 | Middlesex | 42 21 05 N | 071 04 19 W |
| Berklee Performance Center | Building | 17 | Suffolk | 42 20 48 N | 071 05 13 W |
| Berkshire Athenaeum | Building | 318 | Berkshire | 42 26 52 N | 073 15 11 W |
| Berkshire County Courthouse | Building | 313 | Berkshire | 42 26 51 N | 073 15 09 W |
| Berkshire County Jail | Building | 316 | Berkshire | 42 27 24 N | 073 14 42 W |
| Berkshire Dining Hall | Building | 57 | Hampshire | 42 22 55 N | 072 31 48 W |
| Berkshire Hall | Building | 68 | Hampden | 42 06 56 N | 072 31 01 W |
| Berkshire Hall | Building | 67 | Hampshire | 42 23 08 N | 072 31 41 W |
| Berkshire Law Library | Building | 318 | Berkshire | 42 26 51 N | 073 15 09 W |
| Berkshire Museum | Building | 314 | Berkshire | 42 26 50 N | 073 15 14 W |
| Berkshire Nursing Home | Building | 308 | Berkshire | 42 26 38 N | 073 16 19 W |
| Berkshire Performing Arts Center | Building | 381 | Berkshire | 42 21 12 N | 073 16 55 W |
| Berkshire Public Theater | Building | 313 | Berkshire | 42 27 01 N | 073 15 04 W |
| Berlin Town Hall | Building | 115 | Worcester | 42 22 56 N | 071 38 14 W |
| Beth Israel Research East Building | Building | 10 | Suffolk | 42 20 21 N | 071 06 08 W |
| Betty Shabazz Cultural Center | Building | 68 | Hampshire | 42 15 34 N | 072 34 21 W |
| Beveridge Center | Building | 57 | Hampden | 42 06 08 N | 072 33 25 W |
| Beverly City Hall | Building | 17 | Essex | 42 32 50 N | 070 52 43 W |
| Beverly Community Center | Building | 14 | Essex | 42 33 04 N | 070 51 35 W |
| Beverly Farms Branch Beverly Public Library | Building | 36 | Essex | 42 33 45 N | 070 49 44 W |
| Beverly Historical Society Building | Building | 20 | Essex | 42 32 50 N | 070 52 45 W |
| Beverly Hospital Library | Building | 30 | Essex | 42 33 52 N | 070 52 33 W |
| Beverly Public Library | Building | 15 | Essex | 42 33 03 N | 070 52 36 W |
| Bexley Hall | Building | 3 | Middlesex | 42 21 30 N | 071 05 37 W |
| Bigelow Free Public Library | Building | 117 | Worcester | 42 25 02 N | 071 41 00 W |
| Billerica Public Library | Building | 81 | Middlesex | 42 33 31 N | 071 16 11 W |
| Billerica Town Hall | Building | 73 | Middlesex | 42 33 29 N | 071 16 15 W |
| Bitter National Magnet Laboratory | Building | 9 | Middlesex | 42 21 34 N | 071 05 54 W |
| Bixby House | Building | 182 | Worcester | 42 06 17 N | 072 05 47 W |
| Blacksmith Museum | Building | 374 | Berkshire | 42 21 33 N | 073 16 51 W |
| Blackstone Town Hall | Building | 59 | Worcester | 42 01 03 N | 071 32 00 W |
| Blair Hall | Building | 77 | Hampshire | 42 19 35 N | 072 31 35 W |
| Blaisdel Hall | Building | 66 | Hampshire | 42 23 23 N | 072 31 47 W |
| Blake Field | Building | 54 | Hampden | 42 06 14 N | 072 33 23 W |
| Blakeley Hall | Building | 32 | Middlesex | 42 24 23 N | 071 07 13 W |
| Blakeslee House | Building | 33 | Middlesex | 42 24 31 N | 071 07 26 W |
| Blanchard Campus Center | Building | 64 | Hampshire | 42 15 18 N | 072 34 30 W |
| Blandford Town Hall | Building | 431 | Hampden | 42 10 46 N | 072 55 27 W |
| Blue Hill Meteorlogical Observatory Library | Building | 6 | Middlesex | 42 22 42 N | 071 07 01 W |
| Bob Stiles House Museum | Building | 72 | Hampshire | 42 19 31 N | 072 31 32 W |
| Bolles Hall | Building | 15 | Middlesex | 42 24 16 N | 071 07 03 W |
| Bolton Town Hall | Building | 123 | Worcester | 42 26 04 N | 071 36 35 W |
| Boothby Building | Building | 6 | Middlesex | 42 22 53 N | 071 06 58 W |
| Boott Cotton Mills Museum | Building | 24 | Middlesex | 42 38 52 N | 071 18 25 W |
| Boott Mill Boarding House | Building | 30 | Middlesex | 42 38 53 N | 071 18 31 W |
| Borden-Jennings House | Building | 59 | Bristol | 41 42 25 N | 071 09 05 W |
| Border City Mill Number Two | Building | 6 | Bristol | 41 43 40 N | 071 08 38 W |
| Boston Architectural Center | Building | 13 | Suffolk | 42 20 55 N | 071 05 07 W |
| Boston Athenaeum | Building | 40 | Suffolk | 42 21 29 N | 071 03 43 W |
| Boston Center for the Arts | Building | 3 | Suffolk | 42 20 40 N | 071 04 15 W |
| Boston City Hall | Building | 8 | Suffolk | 42 21 37 N | 071 03 28 W |
| Boston College Law Library | Building | 46 | Middlesex | 42 20 32 N | 071 11 36 W |
| Boston Conservatory of Music | Building | 16 | Middlesex | 42 20 47 N | 071 05 24 W |
| Boston Design Center | Building | 12 | Suffolk | 42 20 41 N | 071 01 52 W |
| Boston Fire Museum | Building | 4 | Suffolk | 42 20 58 N | 071 02 54 W |
| Boston Garden (historical) | Building | 14 | Suffolk | 42 21 57 N | 071 03 41 W |
| Boston Marine Society Museum | Building | 11 | Suffolk | 42 22 42 N | 071 03 01 W |
| Boston National Park Visitor Center | Building | 33 | Suffolk | 42 21 30 N | 071 03 29 W |
| Boston Public Library | Building | 13 | Norfolk | 42 20 57 N | 071 04 42 W |
| Boston Tea Party Museum | Building | 13 | Suffolk | 42 21 03 N | 071 02 58 W |
| Boston University Art Gallery | Building | 12 | Suffolk | 42 21 05 N | 071 06 50 W |
| Boston University Metropolitan College Corporate Education Center Library | Building | 54 | Suffolk | 42 39 31 N | 071 24 27 W |
| Boston University Theater | Building | 12 | Suffolk | 42 20 30 N | 071 05 08 W |
| Botolph House | Building | 77 | Middlesex | 42 20 14 N | 071 10 20 W |
| Bourneuf House | Building | 71 | Middlesex | 42 20 07 N | 071 10 18 W |
| Bowditch Hall | Building | 63 | Hampshire | 42 23 30 N | 072 31 53 W |
| Bowman AHANA Center | Building | 69 | Middlesex | 42 20 05 N | 071 10 18 W |
| Boyden Hall | Building | 56 | Hampshire | 42 23 12 N | 072 31 50 W |
| Boyden Library | Building | 66 | Norfolk | 42 01 56 N | 071 15 05 W |
| Boylston Town Offices | Building | 151 | Worcester | 42 19 02 N | 071 45 23 W |
| Bradford M Field Memorial Library | Building | 135 | Franklin | 42 27 05 N | 072 30 02 W |
| Braille and Talking Book Library | Building | 21 | Middlesex | 42 21 45 N | 071 10 38 W |
| Braintree Historical Society Library | Building | 41 | Norfolk | 42 12 14 N | 071 00 21 W |
| Braintree Townhall | Building | 38 | Norfolk | 42 12 22 N | 071 00 21 W |
| Braker Hall | Building | 31 | Middlesex | 42 24 28 N | 071 07 03 W |
| Brandeis University Main Library | Building | 56 | Middlesex | 42 22 00 N | 071 15 28 W |
| Brattle Hall | Building | 14 | Middlesex | 42 22 24 N | 071 07 17 W |
| Brattle Theatre | Building | 14 | Middlesex | 42 22 24 N | 071 07 17 W |
| Bray Lab | Building | 19 | Middlesex | 42 24 21 N | 071 06 57 W |
| Breck Hall of Science | Building | 63 | Hampden | 42 06 46 N | 072 33 26 W |
| Brennan Library | Building | 27 | Middlesex | 42 20 35 N | 071 14 36 W |
| Bridgewater Public Library | Building | 31 | Plymouth | 41 59 19 N | 070 58 35 W |
| Bridgewater Town Hall | Building | 30 | Plymouth | 41 59 20 N | 070 58 29 W |
| Bridgewater Town Hall Annex | Building | 32 | Plymouth | 41 59 18 N | 070 58 35 W |
| Briggs Cage | Building | 3 | Middlesex | 42 22 06 N | 071 07 33 W |
| Briggs Field House | Building | 7 | Middlesex | 42 21 31 N | 071 05 43 W |
| Briggsville Town Hall | Building | 281 | Berkshire | 42 42 51 N | 073 05 04 W |
| Brigham Hall | Building | 72 | Hampshire | 42 15 22 N | 072 34 33 W |
| Bright Hockey Center | Building | 7 | Middlesex | 42 22 05 N | 071 07 33 W |
| Broad Canal | Building | 6 | Middlesex | 42 21 47 N | 071 04 51 W |
| Broadhurt Hall | Building | 63 | Hampden | 42 07 06 N | 072 33 27 W |
| Brock Historical House | Building | 29 | Essex | 42 43 11 N | 070 59 06 W |
| Brock House | Building | 70 | Middlesex | 42 20 06 N | 071 10 18 W |