Building 2

Historical marker location:

2300 E Street Northwest, Foggy Bottom, District of Columbia

( Marker can be reached from 23rd Street Northwest south of E Street Northwest, on the right when traveling south.)

Old Naval Observatory (1844).

The District was originally much larger: The District of Columbia originally included land from both Maryland and Virginia, but in 1846, the portion of the District that had been taken from Virginia was returned to the state.