Region
"Pocket" Plantation (Va.)
1
101 Ranch Historic District (Okla.)
2
19th century
1
Aberdeen
1
Abraham Lincoln Birthplace National Historical Park (Ky.)
1
Accra
1
Accra (Ghana)
1
Adair County
1
Adams County
1
Adams County (Wash.)
1
Adams National Historical Park
2
Adams National Historical Park (Quincy, Mass.)
2
Addis Ababa
1
Addis Ababa (Ethiopia)
1
Addis-Abeba (Éthiopie)
1
Adirondack Mountains Region
1
Adirondack Mountains Region (N.Y.)
1
Aegean Sea Region
1
Afghanistan
11
Africa
34
Africa, East
3
Africa, French-speaking
1
Africa, French-speaking West
1
Africa, North
2
Africa, Sub-Saharan
20
Africa, West
6
Akron
1
Alabama
34
Alamance County
1
Alaska
54
Albany (Ga.)
1
Albany (N.Y.)
1
Albemarle County
5
Albemarle County (Va.)
2
Alberta
7
Albuquerque
1
Albuquerque (N.M.)
1
Alcatraz Island (Calif.)
1
Alentejo
1
Alentejo (Portugal)
1
Aleppo
2
Alexandria County (Va.)
1
Algeria
2
Allegany (N.Y.)
1
Allemagne
3
Alsace (France)
1
Amazon River Region
1
America
12
Amherst
2
Amherst (Mass.)
4
more ...