Region
Turkey
Europe
10
Middle East
7
Byzantine Empire
3
Greece
2
Iraq
2
Istanbul (Turkey)
2
Rome
2
Russia
2
Armenia (Republic)
1
Asia
1
Canada
1
Euphrates River Watershed
1
Holy Roman Empire
1
Hungary
1
Islamic countries
1
Istanbul
1
Mughal Empire
1
Syria
1
Tigris River Watershed
1
United States
1
Vienna (Austria)
1