HISTORIC PLACES GUIDE

National Register of Historic Places

Old Naval Observatory

Old Naval Observatory is a historic place in Washington, District of Columbia County, District of Columbia, listed on the United States National Register of Historic Places on October 15, 1966, and designated a National Historic Landmark. Its National Register reference number is 66000864.

Washington, District of Columbia County, District of ColumbiaListed October 15, 1966NRIS #66000864★ National Historic Landmark
Photograph of Old Naval Observatory
Photo: Old Naval Observatory via Wikimedia Commons — see the file page for author and license. Image source
Noir atlas

Location 01

Old Naval Observatory

Drag to explore · scroll to zoom · select a marker

About this place

What is Old Naval Observatory?

The Old Naval Observatory is a historic site at 23rd and E Street in Northwest, Washington, D.C. It is where the United States Naval Observatory was located from 1844 to 1893, when it moved to its present grounds. The original observatory building, built 1839–40, still stands, and is a designated National Historic Landmark as of 1965. The Washington meridian of 1850 passes through the Observatory.

Source: Wikipedia, text available under CC BY-SA 4.0.

The record

Listing details

Name
Old Naval Observatory
City
Washington
County
District of Columbia County
State
District of Columbia
Listed on the National Register
October 15, 1966
NRIS reference number
66000864
Resource type
building
National Historic Landmark
Yes
Coordinates
38.89502, -77.05145
When was Old Naval Observatory listed on the National Register?

Old Naval Observatory was added to the National Register of Historic Places on October 15, 1966.

Where is Old Naval Observatory located?

Old Naval Observatory is located in Washington, District of Columbia County, District of Columbia at approximately 38.89502, -77.05145. See the map above.

Is Old Naval Observatory a National Historic Landmark?

Yes. Old Naval Observatory is designated a National Historic Landmark, the highest federal recognition for a historic place.

Nearby on the register

More historic places in District of Columbia