Aveiro, Aveiro, Portugal
Wukair, Wukair, Qatar
Sankt-Peterburg, Saint Petersburg, Russian Federation
Veliko Tarnovo, Veliko Tarnovo, Bulgaria
Kraków, Lesser Poland Voivodeship, Poland
Schenefeld (Kreis Pinneberg), Schleswig-Holstein, Germany
Vienna, Vienna, Austria
Tehran, Tehran, Iran (Islamic Republic of)
Porto, Portugal
Memmingen, Bavaria, Germany
Halblech, Bayern, Germany
