Lisbon, Lisboa Region, Portugal
Zonguldak, Blacksea, Türkiye
Thessaloniki, Decentralized Administration of Macedonia and Thrace, Greece
Vologda, Vologda, Russian Federation
Antalya, Antalya, Turkey
Alicante, Valencian Community, Spain
Madrid, Spain
İstanbul, Turkey
Madrid, Community of Madrid, Spain
Amarante, Porto, Portugal