Feature Name | Class | Elev. meters | County | Latitude DMS | Longitude DMS |
| Williams College Museum of Art | Building | 214 | Berkshire | 42 42 39 N | 073 12 08 W |
| Williams Hall | Building | 75 | Middlesex | 42 20 04 N | 071 10 26 W |
| Williamsburg Town Hall | Building | 163 | Hampshire | 42 23 33 N | 072 43 47 W |
| Williamstown Fire Station | Building | 204 | Berkshire | 42 42 37 N | 073 11 56 W |
| Williamstown House of Local History | Building | 217 | Berkshire | 42 42 44 N | 073 12 19 W |
| Williamstown Municipal Building | Building | 219 | Berkshire | 42 42 53 N | 073 12 34 W |
| Willimansett Branch Chicopee Public Library | Building | 24 | Hampden | 42 11 19 N | 072 36 22 W |
| Willis Hall | Building | 17 | Suffolk | 42 20 14 N | 071 05 33 W |
| Willis-Hallowel Center | Building | 56 | Hampshire | 42 15 23 N | 072 34 17 W |
| Williston Hall | Building | 106 | Hampshire | 42 22 17 N | 072 31 04 W |
| Williston Memorial Library | Building | 85 | Hampshire | 42 15 27 N | 072 34 30 W |
| Williston Observatory | Building | 66 | Hampshire | 42 15 21 N | 072 34 41 W |
| Wilmington Chamber of Commerce | Building | 31 | Middlesex | 42 32 58 N | 071 10 24 W |
| Wilmington Memorial Library | Building | 34 | Middlesex | 42 33 28 N | 071 09 50 W |
| Wilson Admission Center | Building | 90 | Hampshire | 42 22 05 N | 072 31 08 W |
| Wilson Building | Building | 9 | Middlesex | 42 22 51 N | 071 07 01 W |
| Wilson Hall | Building | 82 | Hampden | 42 07 51 N | 072 47 35 W |
| Wilson House | Building | 32 | Middlesex | 42 24 29 N | 071 07 29 W |
| Winchendon Town Hall | Building | 303 | Worcester | 42 40 52 N | 072 02 56 W |
| Winchester Public Library | Building | 12 | Middlesex | 42 27 08 N | 071 08 03 W |
| Windham Hall | Building | 71 | Hampden | 42 06 52 N | 072 31 06 W |
| Windsor House Museum | Building | 7 | Plymouth | 42 02 12 N | 070 40 22 W |
| Windsor Town Hall | Building | 623 | Berkshire | 42 30 42 N | 073 03 27 W |
| Wing Family House | Building | 5 | Barnstable | 41 45 01 N | 070 27 45 W |
| Wings Neck Light (historical) | Building | 4 | Barnstable | 41 40 50 N | 070 39 38 W |
| Winslow-Crocker House | Building | 10 | Barnstable | 41 42 20 N | 070 13 51 W |
| Winthrop Public Library and Museum | Building | 15 | Suffolk | 42 22 40 N | 070 59 01 W |
| Winthrop Townhall | Building | 10 | Suffolk | 42 22 39 N | 070 59 04 W |
| Wistariahurst Museum | Building | 66 | Hampden | 42 12 19 N | 072 37 02 W |
| Woburn City Hall | Building | 19 | Middlesex | 42 28 15 N | 071 09 16 W |
| Woburn Public Library | Building | 28 | Middlesex | 42 28 45 N | 071 09 20 W |
| Wolbach Building | Building | 25 | Suffolk | 42 20 10 N | 071 06 20 W |
| Wollaston Branch Thomas Crane Public Library | Building | 5 | Norfolk | 42 16 01 N | 071 01 05 W |
| Wollaston Fire Station | Building | 15 | Norfolk | 42 15 55 N | 071 01 12 W |
| Wollaston Theatre | Building | 6 | Norfolk | 42 16 03 N | 071 01 01 W |
| Womens City Club | Building | 26 | Suffolk | 42 21 26 N | 071 04 03 W |
| Womens Educational and Industrial Union | Building | 18 | Suffolk | 42 21 03 N | 071 04 16 W |
| Wood Building | Building | 13 | Middlesex | 42 21 37 N | 071 05 19 W |
| Woods Hall | Building | 62 | Hampden | 42 06 09 N | 072 33 24 W |
| Woods Hole Aquarium | Building | 2 | Barnstable | 41 31 27 N | 070 40 15 W |
| Worcester Art Museum | Building | 152 | Worcester | 42 16 26 N | 071 48 03 W |
| Worcester Art Museum and School | Building | 158 | Worcester | 42 16 18 N | 071 48 08 W |
| Worcester Art Musuem Library | Building | 156 | Worcester | 42 16 25 N | 071 48 03 W |
| Worcester Centrum | Building | 143 | Worcester | 42 15 53 N | 071 47 56 W |
| Worcester City Hall | Building | 145 | Worcester | 42 15 45 N | 071 48 00 W |
| Worcester County Convention and Visitors Bureau | Building | 157 | Worcester | 42 15 44 N | 071 47 49 W |
| Worcester County Horticultural Society | Building | 154 | Worcester | 42 15 52 N | 071 48 11 W |
| Worcester County Jail and House of Corrections | Building | 196 | Worcester | 42 19 23 N | 071 46 06 W |
| Worcester County Jail and House of Corrections Library | Building | 196 | Worcester | 42 19 23 N | 071 46 06 W |
| Worcester Dining Hall | Building | 75 | Hampshire | 42 23 40 N | 072 31 28 W |
| Worcester Foundation for Biomedical Research | Building | 181 | Worcester | 42 17 10 N | 071 43 48 W |
| Worcester Law Library | Building | 148 | Worcester | 42 15 37 N | 071 48 02 W |
| Worcester Mechanics Hall | Building | 148 | Worcester | 42 15 57 N | 071 48 03 W |
| Worcester Memorial Auditorium | Building | 154 | Worcester | 42 16 18 N | 071 48 03 W |
| Worcester Police Department | Building | 151 | Worcester | 42 16 17 N | 071 47 52 W |
| Worcester Public Library | Building | 153 | Worcester | 42 15 37 N | 071 48 01 W |
| Worcester Science Center | Building | 177 | Worcester | 42 15 51 N | 071 45 58 W |
| Worcester State Hospital Library and Learning Resources Center | Building | 187 | Worcester | 42 16 46 N | 071 46 13 W |
| Worcester Technical Institute Library | Building | 203 | Worcester | 42 16 25 N | 071 46 53 W |
| Worcester Union Station | Building | 152 | Worcester | 42 15 40 N | 071 47 42 W |
| Worcester YMCA | Building | 148 | Worcester | 42 15 32 N | 071 48 25 W |
| Worcester YMCA | Building | 151 | Worcester | 42 15 36 N | 071 47 56 W |
| Words and Pictures Museum | Building | 53 | Hampshire | 42 19 03 N | 072 38 08 W |
| Working Boys Home (historical) | Building | 50 | Middlesex | 42 17 59 N | 071 11 48 W |
| World Phenomenology Institute | Building | 37 | Middlesex | 42 28 43 N | 071 10 01 W |
| World Religions Center | Building | 13 | Middlesex | 42 22 49 N | 071 06 42 W |
| World Trade Center | Building | 10 | Suffolk | 42 21 06 N | 071 02 25 W |
| Worthington Town Hall | Building | 452 | Hampshire | 42 24 01 N | 072 56 15 W |
| Wren Hall | Building | 37 | Middlesex | 42 24 35 N | 071 07 20 W |
| Wright Brothers Wind Tunnel | Building | 9 | Middlesex | 42 21 36 N | 071 05 35 W |
| Wright Hall | Building | 66 | Hampshire | 42 19 03 N | 072 38 14 W |
| Wright Tavern | Building | 41 | Middlesex | 42 27 35 N | 071 20 52 W |
| Wright Tavern (historical) | Building | 39 | Middlesex | 42 27 35 N | 071 20 57 W |
| Wyeth Building | Building | 12 | Middlesex | 42 22 46 N | 071 07 10 W |
| Wyeth House | Building | 33 | Middlesex | 42 24 22 N | 071 07 26 W |
| Xavier Hall | Building | 78 | Middlesex | 42 20 02 N | 071 10 33 W |
| Yamins Wing | Building | 14 | Suffolk | 42 20 26 N | 071 06 19 W |
| Yesteryears Doll Museum | Building | 5 | Barnstable | 41 45 29 N | 070 29 57 W |
| YMCA | Building | 203 | Berkshire | 42 41 50 N | 073 08 15 W |
| YMCA | Building | 27 | Hampden | 42 06 34 N | 072 35 34 W |
| YMCA | Building | 54 | Hampden | 42 12 28 N | 072 36 56 W |
| YMCA | Building | 33 | Hampden | 42 06 24 N | 072 35 12 W |
| YMCA | Building | 18 | Hampden | 42 05 58 N | 072 35 14 W |
| YMCA | Building | 13 | Middlesex | 42 22 01 N | 071 06 23 W |
| YMCA | Building | 33 | Middlesex | 42 30 16 N | 071 04 18 W |
| YMCA | Building | 55 | Middlesex | 42 16 55 N | 071 26 00 W |
| Young Mens Library Association | Building | 132 | Hampshire | 42 15 38 N | 072 14 27 W |
| Young Science Library | Building | 61 | Hampshire | 42 19 02 N | 072 38 15 W |
| Youngdahl Memorial Library | Building | 38 | Norfolk | 42 11 16 N | 071 12 13 W |
| Youville Hospital School of Practical Nursing Library | Building | 16 | Middlesex | 42 22 28 N | 071 06 24 W |
| YWCA | Building | 16 | Middlesex | 42 22 02 N | 071 06 17 W |
| YWCA | Building | 37 | Suffolk | 42 20 54 N | 071 04 27 W |
| Blackstone Canal | Canal | 80 | Worcester | 42 08 56 N | 071 38 48 W |
| Broad Brook Canal | Canal | 113 | Hampden | 42 12 40 N | 072 24 53 W |
| Broad Canal | Canal | 22 | Middlesex | 42 21 45 N | 071 04 44 W |
| Cape Cod Canal | Canal | 0 | Barnstable | 41 46 05 N | 070 33 58 W |
| Cochituate Aqueduct (historical) | Canal | 51 | Suffolk | 42 19 34 N | 071 12 28 W |
| Cosgrove Aqueduct | Canal | 108 | Worcester | 42 23 08 N | 071 39 43 W |
| Eastern Canal | Canal | 26 | Middlesex | 42 38 46 N | 071 18 22 W |
| First Level Canal | Canal | 33 | Hampden | 42 12 43 N | 072 36 13 W |
| Hamilton Canal | Canal | 33 | Middlesex | 42 38 29 N | 071 18 45 W |
| Hampshire and Hampden Canal | Canal | 56 | Hampden | 42 04 46 N | 072 43 45 W |
| Hampshire and Hampden Canal | Canal | 44 | Hampshire | 42 05 13 N | 072 43 31 W |
| Hecla Canal | Canal | 71 | Worcester | 42 04 10 N | 071 36 35 W |
| Lawrence Wasteway | Canal | 31 | Middlesex | 42 39 01 N | 071 18 51 W |
| Lechmere Canal | Canal | 8 | Suffolk | 42 22 10 N | 071 04 25 W |
| Madaket Ditch | Canal | -9 | Nantucket | 41 15 40 N | 070 11 28 W |
| Massachusetts Wasteway | Canal | 27 | Middlesex | 42 38 47 N | 071 18 20 W |
| Mattakeset Herring Creek | Canal | 1 | Dukes | 41 20 57 N | 070 30 35 W |
| Merrimack Canal | Canal | 26 | Middlesex | 42 38 44 N | 071 18 44 W |