October 6, 2000
Humenné, Slovakia
April 11, 2003
St. Petersburg [Санкт-Петербург], Russia
November 18, 2007
Skelivka [Ukrainian: Скелівка; Polish: Felsztyn; German: Fullenstein], Ukraine
2010
Szczytna [German: Rückers], Poland
2011
Bögelmä, Tatarstan, Russian Federation
Lipnice on the Sazava [Lipnice nad Sázavou], Czech Republic
November 15, 2013
Samara [Самара], Russia
August 23, 2014
Putim, Czech Republic
Kralupy on the Vltava [Czech: Kralupy nad Vltavou; German: Kralup an der Moldau], Czech Republic
Olomouc [German: Olmütz], Czech Republic
May 20, 2017
Kralupy on the Vltava [Czech: Kralupy nad Vltavou; German: Kralup an der Moldau], Czech Republic