Region
United States
334
États-Unis
69
Europe
58
Pacific Area
35
Asia
27
Pennsylvania
21
East Asia
18
India
18
Soviet Union
17
Latin America
13
Middle East
13
China
10
Spain
10
Russia (Federation)
9
Argentina
8
France
7
Mediterranean Region
7
Rome
7
Indian Ocean Region
6
Italy
6
Developing countries
5
Erie, Lake
5
Germany
5
Israel
5
Japan
5
North America
5
Rome (Empire)
5
South Asia
5
Africa
4
Asie
4
Balkan Peninsula
4
Egypt
4
Greece
4
Indo-Pacific Region
4
Philadelphia
4
Russia
4
South America
4
Southeast Asia
4
Africa, Southern
3
Canada
3
Europe, Eastern
3
Europe, Southern
3
European Union countries
3
Great Britain
3
Indo-Malaisie
3
Lake Superior Watershed
3
Massachusetts
3
Mexico
3
Outer space
3
Pacifique, Région du
3
more ...