Geographic Subject
Europe
3,019
Europe, Eastern
689
Germany
296
United States
253
France
172
Soviet Union
172
Great Britain
159
Europe, Central
102
Russia
75
Turkey
70
Russia (Federation)
65
Asia
55
India
54
Switzerland
54
Poland
52
Europe, Northern
51
Middle East
51
Africa
50
Italy
49
Netherlands
43
Austria
36
Balkan Peninsula
33
America
30
Germany (West)
30
Prussia
30
Rome
29
Egypt
28
Pomerania (Poland and Germany)
28
Sweden
28
Europe, Western
27
Pomerania
27
Communist countries
25
European Economic Community countries
25
Hungary
24
Saxony
24
Prussia (Germany)
23
European Union countries
22
Greece
21
Saxony (Prussia)
21
Europe, Southern
20
Spain
19
Holy Roman Empire
18
Romania
18
Developing countries
17
Latin America
17
Former Soviet republics
16
Japan
16
Yugoslavia
16
China
15
Morocco
15
more ...