Mount Vernon Seminary for Girls
Also known as: U.S. Naval Communications Annex, Naval Security Station, Nebraska Avenue Complex3801 Nebraska Ave., NW., Washington, DC
+38.93877, -77.0828238°56'20" N, 77°04'58" W
Listed on the National Register of Historic Places on August 10, 2016.
- November 15, 2017: Added by Michael Miller