National Register of Historic Places
Old Naval Observatory
Also designated a National Historic Landmark.
Washington, District of Columbia County, District of Columbia
The record
- Listed
- October 15, 1966
- Type
- Building
- Address
- 23rd and E Sts., NW, Washington
- County
- District of Columbia
- State
- District of Columbia
- Period of significance
- 1825 to 1899
- Contributing resources
- 1 building
- Coordinates
- 38.89502, -77.05145
- Reference number
- 66000864