Geographic Subject
Soviet Union
144
Russia (Federation)
97
Poland
79
India
42
United States
23
China
18
Developing countries
13
Europe, Eastern
12
France
12
Indonesia
12
Russia
12
Siberia
11
Siberia, Western
11
Europe
10
Russian Far East
10
Ural Mountains Region
9
Germany (West)
8
Latin America
7
Sakha
7
Africa
6
Argentina
6
Bashkortostan
6
Earth
6
Germany
6
Middle East
6
Pakistan
6
Ural Mountains Region (Russia)
6
Balkan Peninsula
5
Bashkortostan (Russia)
5
Egypt
5
Great Britain
5
Rome
5
Saudi Arabia
5
Singapore
5
Turkey
5
Asia
4
Bulgaria
4
Byzantine Empire
4
Chile
4
Greece
4
Iran
4
Mexico
4
Nepal
4
South Asia
4
Tatarstan (Russia)
4
Asia, Central
3
Asia, Southeastern
3
Brazil
3
Communist countries
3
Japan
3
more ...