Massachusetts - Area of significance: Architecture
| Park Street District |
| Park Street Firehouse |
| Park Street Railroad Station |
| Parsons, Edward, House |
| Parsons, Shepherd and Damon, Houses Historic District |
| Partridge, Jabez, Homestead |
| Partridge, John, House |
| Patch, Emeline, House |
| Patton and Loomis Block |
| Patton Building |
| Paull, Alfred, House |
| PAUL PALMER (Shipwreck and Remains) |
| Pawtucket Congregational Church |
| Peabody Central Fire Station |
| Peabody City Hall |
| Peabody Civic Center Historic District |
| Peabody Court Apartments |
| Peabody, George, House |
| Peabody Institute |
| Peabody Institute Library |
| Peabody, John P., House |
| Peabody School |
| Peabody, The |
| Peabody-Williams House |
| Peacock Farm Historic District |
| Peak House |
| Pearson, Abiel, House |
| Peck-Bowen House |
| Peck, John M., House |
| Peirce, Edward, House-Henderson House of Northeastern University |
| Peirce-Nichols House |
| Peirce School |
| Pelham Town Hall Historic District |
| Pembroke Friends Meetinghouse |
| Penniman, Edward, House and Barn |
| Pepperell Center Historic District |
| Pequoig Hotel |
| Perkins Estate |
| Perkins, John, House |
| Perkins, Joseph, House |
| Perrin, William, House |
| Perry Avenue Historic District |
| Perry, James, House |
| Petersham Common Historic District |
| Pettengill, C. F., House |
| Petterson, Lars-Adolph Carlson Three-Decker |
| Petterson, Lars-Fred Gurney Three-Decker |
| Petterson,Lars-James Reidy Three-Decker |
| Petterson, Lars-Silas Archer Three-Decker |
| Pettibone Farm |
| Phillips, E. M., House |
| Phillipston Center Historic District |
| Phillips Woolen Mill |
| Phinney, William and Jane, House |
| Phoenix Building |
| Piano Row District |
| Picard, Israel, House |
| Pierce, Capt, Mial, Farm |
| Pierce Farm Historic District |
| Pierce, F. Lincoln, Houses |
| Pierce-Hichborn House |
| Pierce House |
| Pierce House |
| Pierce Organ Pipe Factory |
| Pierce, Peter, Store |
| Pierce, Sylvester K., House |
| Piety Corner Historic District |
| Pilgrim Congregational Church |
| Pilgrim Congregational Church |
| Pilgrim Congregational Church |
| Pilgrim Hall |
| Pilgrim Memorial Church and Parish House |
| Pilgrim Mills |
| Pill Hill Historic District |
| Pillsbury-French House |
| Pillsbury Summer House |
| Pine Grove Cemetery |
| Pine Ridge Road-Plainfield Street Historic District |
| Pine Street School |
| Pine Street School |
| Pinewoods Camp |
| Pinkham House |
| Pinkham, Lydia, House |
| Pinkham, Richard, House |
| Pittsfield Cemetery |
| Pittsfield & North Adams Passenger Station and Baggage & Express House |
| Plainfield Center Historic District |
| Platts-Bradstreet House |
| Pleasant-High Historic District |
| Pleasant-School Street Historic District |
| Pleasant Street Congregational Church |
| Pleasant Street Firehouse |
| Pleasant Street Historic District |
| Pleasant Street Historic District |
| Pleasant Street School |
| Pleasant Street School |
| Plimpton, Simon, Farmhouse |
| Plimpton-Winter House |
| Plummer Memorial Library |
| Plymouth Antiquarian House |
Data from United States Park Service and Wikidata
