Twin Cities

• Lublin (Republic of Poland)
• Olsztyn (Republic of Poland)
• Rzeszów (Republic of Poland)
• Toruń (Republic of Poland)
• Zamość (Republic of Poland)
• Chełm (Republic of Poland)
• Białystok (Republic of Poland)
• Xiangtan (People's Republic of China)
• Gori (Georgia)
• Trakai District (Republic of Lithuania)
• Kaunas (Republic of Lithuania)
• Taurage District (Republic of Lithuania)
• Alba Iulia (Romania)
• Bandirma (Republic of Turkey)
• Lippe District (Federal Republic of Germany)
• Kyjov (Czech Republic)
• Patras (Greece)
• Svit (Slovak Republic)
• Schweinfurt (Federal Republic of Germany)