District of Columbia - Criteria: A (event)
| Sun Building |
| Surratt, Mary E., House |
| Syphax, William, School |
| Takoma Park Historic District |
| Tenth Precinct Station House |
| Terminal Refrigerating and Warehouse Company |
| Texas Gardens Apartments |
| The Furies Collective |
| Theodore Roosevelt Island National Memorial |
| Third Baptist Church |
| Tiber Island |
| Tilden Hall |
| Tivoli Theater |
| Town Center East |
| Trades Hall of National Training School for Women and Girls |
| Truck Company F |
| Truck House No. 13 |
| True Reformer Building |
| Tudor Place |
| Uline Ice Company Plant and Arena Complex |
| Underwood, Oscar W., House |
| Union Station |
| Union Trust Building |
| United Brick Corporation Brick Complex |
| United Brotherhood of Carpenters and Joiners-Local 132 |
| United Mine Workers of America |
| United States Daughters of 1812, National Headquarters |
| US Chamber of Commerce Building |
| U.S. Civil Service Commission Building |
| US Courthouse-District of Columbia |
| U.S. Department of Agriculture Cotton Annex |
| US Department of Agriculture South Building |
| U.S. Department of State Building |
| US Department of the Interior Building |
| U.S. Marine Corps Barracks and Commandant's House |
| U.S. Post Office Department Mail Equipment Shops |
| US Public Health Service Building |
| U.S. Soldiers' and Airmen's Home |
| USS SEQUOIA (yacht) |
| U.S. Tax Court |
| Vigilant Firehouse |
| Virginia Interlocking Control Tower |
| Walde-Carter House |
| Walsh Stable |
| Walter Reed Army Medical Center (WRAMC) Historic District |
| Wardman Park Annex and Arcade |
| Washington and Georgetown Railroad Car House |
| Washington Aqueduct |
| Washington Canoe Club |
| Washington Heights Historic District |
| Washington, Margaret Murray, School |
| Washington Monument |
| Watergate |
| Webster, Marjorie, Junior College Historic District |
| Western High School |
| Wetzel, Margaret, House |
| Wheatley, Phyllis, YWCA |
| Wheat Row |
| Whitelaw Hotel |
| Willard Hotel |
| Wilson, James Ormand, Normal School |
| Winder Building |
| Woodhull, Maxwell, House |
| Woodlawn Cemetery |
| Woodrow Wilson High School |
| Woodward and Lothrop Service Warehouse |
| Wyoming Apartments |
| Yale Steam Laundry |
Data from United States Park Service and Wikidata
