Region
101 Ranch Historic District (Okla.)
1
19th century
1
20th century
1
Aachen
1
Abū Ẓaby (Emirate)
1
Abū Ẓaby (United Arab Emirates : Emirate)
1
Accra
1
Accra (Ghana)
1
Adams National Historical Park (Quincy, Mass.)
1
Addis Ababa
1
Adelaide (S.A.)
2
Adriatic Sea Region
1
Aegean Sea
1
Aegean Sea Region
6
Afghanistan
6
Africa
296
Africa South of the Sahara
1
Africa, Central
4
Africa, East
8
Africa, Eastern
2
Africa, English-speaking
1
Africa, French-speaking
1
Africa, French-speaking West
1
Africa, North
22
Africa, Portuguese-speaking
2
Africa, Southern
17
Africa, Sub-Saharan
35
Africa, Sur del Sahara
1
Africa, West
13
Agriculture
1
Ahmadābād (India)
1
Aims and objectives
1
Aitōlia kai Akarnania
1
Aitōlia kai Akarnania (Greece)
1
Ajanta Caves (India)
1
Ajusco (Mexico)
1
Akron
3
Akron (Ohio)
3
Al Kūt (Iraq)
1
Al ʻAsāsīf (Egypt)
1
Alabama
8
Alaska
14
Albania
2
Albany (N.Y.)
2
Alberta
7
Albuquerque
1
Alder Creek Site (Calif.)
1
Alexanderplatz (Berlin, Germany)
1
Alexandria
1
Alexandria (Egypt)
1
more ...