Place
- Bulgaria, Europe7
- Germany5
- England4
- France4
- Russian Soviet Federative Socialist Republic, Asia4
- Sofia Province, Bulgaria4
- Turkey, Europe/Asia4
- Egypt, Africa3
- Greece3
- India, Asia3
- Istanbul, Turkey3
- Romania, Europe3
- Ruse, Bulgaria3
- Spain, Europe3
- Vienna, Austria3
- America, North America2
- Ankara, Turkey2
- Austria, Europe2
- Crete, Greece2
- Hungary, Europe2