Sofia, Bulgaria
Heidelberg, Baden-Wuerttemberg, Germany
Philadelphia, PA, USA
Tata, Komarom-Esztergom, Hungary
Frederiksberg, Denmark
Edinburgh, United Kingdom of Great Britain and Northern Ireland
Tallinn, Harju maakond, Estonia
Slatina, Virovitica-Podravina, Croatia
Thessaloniki, Central Macedonia, Greece
Craiova, Dolj, Romania
Larissa, Thessaly, Greece
