Shenzhen, Guangdong, China
Skopje, Macedonia (the former Yugoslav Republic of)
Poznan, Poland
Torun, Kuyavian-Pomeranian Voivodeship, Poland
Delft, Netherlands
Poznan, Greater Poland, Poland
Saint Petersburg, Saint Petersburg, Russian Federation
Wroclaw, Lower Silesia, Poland
Gdansk, Pomerania, Poland
Vilnius, Vilnius County, Lithuania