District of Columbia - Significance region: National
| Adams Memorial |
| Administration Building, Carnegie Institute of Washington |
| American Federation of Labor Building |
| American National Red Cross |
| American Peace Society |
| Armed Forces Retirement Home-Washington |
| Army Medical Museum |
| Arts and Industries Building |
| Arts Club of Washington |
| Asbury, Francis, Memorial |
| Ashburton House |
| Baker, Newton D., House |
| Battleground National Cemetery |
| Bayly, Mountjoy, House |
| Bell, Alexander Graham, Laboratory |
| Blair House |
| Bruce, Blanche K., House |
| Carnegie Endowment for International Peace |
| Cary, Mary Ann Shadd, House |
| Causeway, The |
| Chesapeake and Ohio Canal National Historical Park |
| City Hall |
| Civil War Monuments in Washington, DC |
| Cleveland Park Historic District |
| Congressional Cemetery |
| Congressional Club |
| Connecticut Avenue Bridge |
| Constitution Hall |
| Corcoran Gallery of Art |
| Coues, Elliott, House |
| Cuban Friendship Urn |
| Decatur House |
| de San Martin, General Jose, Memorial |
| Dumbarton Oaks Park and Montrose Park |
| Earley, John Joseph House |
| East Corner Boundary Marker of the Original District of Columbia |
| Embassy of Mexico-MacVeagh House |
| Executive Office Building |
| Federal Home Loan Bank Board Building (FHLBB) |
| Federal Office Building No. 6 |
| Folger Shakespeare Library |
| Ford's Theatre National Historic Site |
| Forrest-Marbury House |
| Founding Church of Scientology, Washington DC |
| Franciscan Monastery and Memorial Church of the Holy Land |
| Frederick Douglass National Historic Site |
| Freer Gallery Of Art |
| Gallaudet College Historic District |
| Gallaudet College Historic District |
| General Federation of Women's Clubs Headquarters |
| General Post Office |
| Georgetown Historic District |
| George Washington Memorial Parkway |
| Gibbons, James, Cardinal |
| Gompers, Samuel, House |
| Gompers, Samuel, Memorial |
| Grace Reformed Church, Sunday School and Parish House |
| Grimke, Charlotte Forten, House |
| Hahnemann, Samuel, Monument |
| Healy Building, Georgetown University |
| Hecht Company Warehouse |
| Howard, Gen. Oliver Otis, House |
| Howard Theatre |
| Hughes, Charles Evans, House |
| Interior Department Offices |
| Kalorama Triangle Historic District |
| Kameny, Dr. Franklin E., House |
| Lafayette Square Historic District |
| Langston Terrace Dwellings |
| L'Enfant Plan of the City of Washington, District of Columbia |
| Lincoln Memorial |
| Longfellow, Henry Wadsworth, Memorial |
| Lyndon Baines Johnson Memorial Grove on The Potomac |
| Macfeely, Gen. Robert, House |
| Marconi, Guglielmo, Memorial |
| McCormick Apartments |
| Meeting House of the Friends Meeting of Washington |
| Memorial Continental Hall |
| Meridian House |
| Meridian Mansions |
| Metropolitan African Methodist Episcopal Church |
| Mount Vernon Seminary for Girls |
| National Archives |
| National Cathedral, The |
| National Geographic Society Headquarters |
| National Mall |
| National Museum of Natural History |
| National Portrait Gallery |
| National War College |
| National Zoological Park |
| Newlands, Francis Griffith, Memorial Fountain |
| North Corner Boundary Marker of the Original District of Columbia |
| Northeast No. 2 Boundary Marker of the Original District of Columbia |
| Northeast No. 3 Boundary Marker of the Original District of Columbia |
| Northeast No. 4 Boundary Marker of the Original District of Columbia |
| Northeast No. 5 Boundary Marker of the Original District of Columbia |
| Northeast No. 6 Boundary Marker of the Original District of Columbia |
| Northeast No. 7 Boundary Marker of the Original District of Columbia |
| Northeast No. 8 Boundary Marker of the Original District of Columbia |
| Northeast No. 9 Boundary Marker of the Original District of Columbia |
Data from United States Park Service and Wikidata
