Region
United States
16
China
4
Europe
2
Great Britain
2
Tropics
2
America
1
Arab countries
1
Asia
1
Developing countries
1
Former Soviet republics
1
Islamic countries
1
Japan
1
Korea (South)
1
Latin America
1
Los Angeles (Calif.)
1
Mediterranean Region
1
Middle East
1
Moon
1
New York
1
New York (State)
1
North America
1
Soviet Union
1
Turkey
1
Universe
1