Region
Washington (D.C.)
585
United States
163
Maryland
21
Virginia
14
Washington, D.C.
14
États-Unis
10
Georgetown (Washington, D.C.)
9
Pennsylvania
9
Philadelphia (Pa.)
8
Washington, DC
7
Chesapeake and Ohio Canal (Md. and Washington, D.C.)
6
New York (N.Y.)
5
Philadelphia
5
Delaware
4
Georgetown
4
New York (State)
4
New Jersey
3
New York
3
Potomac River
3
Southern States
3
Alexandria
2
Annapolis
2
Anne Arundel County
2
Atlantic States
2
Baltimore (Md.)
2
Boston
2
Boston (Mass.)
2
Liberia
2
Massachusetts
2
North America
2
Pennsylvania Avenue (Washington, D.C.)
2
United States, District of Columbia
2
Washington
2
Washington, D.C. 1840
2
West (U.S.)
2
Albany
1
Albany (N.Y.)
1
America
1
Anacostia
1
Annapolis (Md.)
1
Baltimore
1
Baltimore Metropolitan Area
1
Baltimore Region
1
Bladensburg
1
Burlington
1
California
1
Cecil County
1
Cecil County (Md.)
1
Central America
1
Chautauqua Co
1
more ...