District of Columbia - Architectural style - Neoclassical architecture
| American Institute of Pharmacy Building |
| American National Red Cross |
| American Security and Trust Company |
| Arlington Memorial Bridge |
| Cathedral Mansions Apartment Buildings |
| Chesapeake and Potomac Telephone Company, Cleveland-Emerson Exchange |
| Chevy Chase Arcade |
| Chevy Chase Theater |
| City Hall |
| Codman-Davis House |
| Constitution Hall |
| Earley, John J., Office and Studio |
| Embassy Gulf Service Station |
| Emory United Methodist Church |
| Equitable Co-operative Building Association |
| Euclid Apartments |
| Federal-American National Bank |
| Federal Home Loan Bank Board Building |
| First Church of Christ, Scientist |
| Flagler, The |
| Harris & Ewing Photographic Studio |
| Kelsey Temple Church of God in Christ |
| Key, Francis Scott, Bridge |
| Lexington, The |
| Lincoln Theatre |
| Maycroft, The |
| McLachlen Building |
| National Academy of Sciences |
| National Archives |
| National War College |
| Northumberland Apartments |
| Park Road Courts |
| Perna Brothers' Chesapeake Street Houses |
| Peyser Building-Security Savings and Commercial Bank |
| Plymouth, The |
| Riggs National Bank |
| Riggs-Tompkins Building |
| Saul, B.F., Building |
| Second National Bank |
| Seventh Street Savings Bank |
| Strand Theater |
| Terminal Refrigerating and Warehouse Company |
| The Furies Collective |
| Thomas Jefferson Memorial |
| U.S. Department of Agriculture Administration Building (Boundary Increase and Additional Documentation) |
| US Public Health Service Building |
| Van Ness Mausoleum |
| Waggaman-Ray Commercial Row |
| Wardman Row |
Data from United States Park Service and Wikidata