Maryland - Area of significance: Science
| Bethesda Naval Hospital Tower |
| Carson, Rachel, House |
| College Park Airport |
| Davidge Hall, University of Maryland |
| Gaithersburg Latitude Observatory |
| Hard Bargain Farm |
| Liriodendron |
| McCollum, Elmer V., House |
| Naval Ordnance Laboratory |
| NIST Historic District |
| Old Goucher College Buildings |
| One-Million-Liter Test Sphere |
| Poole and Hunt Company Buildings |
| Remsen, Ira, House |
| Rowland, Henry August, House |
| Salmon-Stohlman House |
| Taylor, David W., Model Basin |
| U.S. Atomic Energy Commission |
| Washington, George, House |
| Welch, William H., House |
| Wiley-Ringland House |
Data from United States Park Service and Wikidata
