Region
Balkan Peninsula
11
Yugoslavia
4
Bulgaria
3
Europe
2
Europe, Western
2
Greece
2
Romania
2
Turkey
2
Austria
1
Bosnia and Herzegovina
1
Danube River
1
Europe, Central
1
Europe, Eastern
1
Former Yugoslav republics
1
Griechenland
1
Italy
1
Mediterranean Region
1
Rhodope Mountains Region
1
Serbia
1
Slovenia
1