Region
China
96
India
51
Developing countries
45
Europe
45
Asia
29
United States
27
Africa
18
Japan
18
Outer space
17
European Union countries
16
Germany
12
Latin America
11
Mediterranean Region
11
Italy
9
Spain
9
South Africa
8
Brazil
7
Middle East
7
Tropics
7
Iran
6
Mars (Planet)
6
Poland
6
Russia (Federation)
6
Africa, Sub-Saharan
5
Asia, Central
5
Cuba
5
Great Britain
5
Balkan Peninsula
4
Danube River
4
Egypt
4
Malaysia
4
Mexico
4
Pacific Area
4
Africa, East
3
Africa, North
3
Australia
3
Bangladesh
3
Canada
3
Europe, Southern
3
Everglades
3
Florida
3
Ganges River (India and Bangladesh)
3
Indonesia
3
Jordan
3
Mekong River Watershed
3
Moon
3
Southeast Asia
3
Ukraine
3
Vietnam
3
West (U.S.)
3
more ...