Region
Europe
4
European Union countries
4
Asia
3
China
3
India
3
Russia (Federation)
3
Soviet Union
3
Cambridge
2
Erde
2
Great Britain
2
Greece
2
Heidelberg
2
United States
2
Africa
1
Asia, Central
1
Australia
1
Berlin
1
Bremen
1
Europe, Eastern
1
Fort Myers, Fla.
1
Hungary
1
Hyderabad <Telangana>
1
Iceland
1
India, Northeastern
1
Japan
1
Kalkutta
1
Kapstadt
1
Krakau
1
Köln
1
Lateinamerika
1
Latin America
1
Lausanne
1
Leeds
1
London
1
Lublin
1
Manchester
1
Oxford
1
Poland
1
Porto (Portugal)
1
Portugal
1
Potsdam
1
Prague
1
Rome
1
Russia
1
Russland
1
Shanghai
1
Shillong
1
Silk Road
1
Southeast Asia
1
Sowjetunion
1
more ...