Maine - Architectural style - Greek Revival architecture
| Smith, Zebulon, House |
| Somerset Academy |
| Spaulding House |
| St. Denis Catholic Church |
| Stetson Union Church |
| St. John's Episcopal Church |
| Stowe, Harriet Beecher, House |
| Symphony House |
| Thacher-Goodale House |
| Thatcher, Henry Knox, House |
| Tracy-Causer Block |
| Traip, Robert and Louisa, House |
| Treat, Nathaniel, House |
| Troy Meeting House |
| Underwood, Joseph H., House |
| Union Church |
| Union Church |
| Union Church |
| Union Church, (former) |
| Union Evangelical Church |
| Union Meeting House |
| Union Meeting House, (Appleton) |
| Universalist Meeting House |
| Vienna Town House |
| Wardwell-Trickey Double House |
| Washington County Courthouse |
| Waterville Post Office |
| Wayne Town House |
| Webb, John and Maria, House |
| Wentworth, Mark F. and Eliza J., House |
| West Brooksville Congregational Church |
| West Durham Methodist Church |
| Westport Community Church |
| White, James P., House |
| Wiggin, Kate Douglas, House |
| Wiley, James Sullivan, House |
Data from United States Park Service and Wikidata
