- Albania: Tirana
- Andorra: Andorra la Vella
- Austria: Vienna
- Belarus: Minsk
- Belgium: Brussels
- Bosnia and Herzegovina: Sarajevo
- Bulgaria: Sofia
- Croatia: Zagreb
- Cyprus: Nicosia
- Czech Republic: Prague
- Denmark: Copenhagen
- Estonia: Tallinn
- Finland: Helsinki
- France: Paris
- Germany: Berlin
- Greece: Athens
- Hungary: Budapest
- Iceland: Reykjavik
- Ireland: Dublin
- Italy: Rome
- Latvia: Riga
- Liechtenstein: Vaduz
- Lithuania: Vilnius
- Luxembourg: Luxembourg
- Malta: Valletta
- Moldova: Chisinau
- Monaco: Monaco
- Montenegro: Podgorica
- Netherlands: Amsterdam
- North Macedonia: Skopje
- Norway: Oslo
- Poland: Warsaw
- Portugal: Lisbon
- Romania: Bucharest
- Russia: Moscow
- San Marino: San Marino
- Serbia: Belgrade
- Slovakia: Bratislava
- Slovenia: Ljubljana
- Spain: Madrid
- Sweden: Stockholm
- Switzerland: Bern
- Turkey: Ankara
- Ukraine: Kyiv
- United Kingdom: London
- Vatican City: Vatican City
