District of Columbia - Constructed - 1900–1909
| American Security and Trust Company |
| Armstrong Manual Training School |
| Belmont, Perry, House |
| Bond Building |
| Central Public Library |
| Cosmos Club |
| District Building |
| Earley, John J., Office and Studio |
| Engine Company 27 |
| Engine Company No 21 |
| Ethelhurst, The |
| First Baptist Church of Deanwood |
| Frelinghuysen University, Former Classroom Building |
| Gladstone and Hawarden Apartment Buildings |
| Hibbs, W. B., and Company Building |
| Jesse Reno School |
| Longfellow, Henry Wadsworth, Memorial |
| Masonic Temple |
| National Metropolitan Bank Building |
| Old Woodley Park Historic District |
| Pink Palace |
| Riggs National Bank |
| Syphax, William, School |
| Union Station |
| Union Trust Building |
| U.S. Department of Agriculture Administration Building (Boundary Increase and Additional Documentation) |
| Walter Reed Army Medical Center (WRAMC) Historic District |
| Willard Hotel |
Data from United States Park Service and Wikidata