1. Amsterdam, Netherlands
  2. Andorra la Vella, Andorra
  3. Antwerp, Belgium
  4. Athens, Greece
  5. Atlantic City, New Jersey
  6. Baku, Azerbaijan
  7. Barcelona, Spain
  8. Bath, England
  9. Belfast, Northern Ireland
  10. Belgrade, Serbia
  11. Bergamo, Italy
  12. Berlin, Germany
  13. Bern, Switzerland
  14. Bilbao, Spain
  15. Bologna, Italy
  16. Bordeaux, France
  17. Boston, Massachusetts
  18. Brasov, Romania
  19. Bratislava, Slovakia
  20. Bruges, Belgium
  21. Brussels, Belgium
  22. Bucharest, Romania
  23. Budapest, Hungary
  24. Budva, Montenegro
  25. Burano, Italy
  26. Cannes, France
  27. Cardiff, Wales
  28. Chicago, Illinois
  29. Chisinau, Moldova
  30. City of San Marino, San Marino
  31. Cologne, Germany
  32. Copenhagen, Denmark
  33. Cordoba, Spain
  34. Cork, Ireland
  35. Crete, Greece
  36. Derry, Northern Ireland
  37. Dublin, Ireland
  38. Edinburgh, Scotland
  39. Florence, Italy
  40. Frankfurt, Germany
  41. Galway, Ireland
  42. Gdansk, Poland
  43. Gdynia, Poland
  44. Gibraltar, British Overseas Territory
  45. Glasgow, Scotland
  46. Gothenburg, Sweden
  47. Gozo Island, Malta
  48. Granada, Spain
  49. Helsinki, Finland
  50. Kilkenny, Ireland
  51. Koprivshtitsa, Bulgaria
  52. Kotor, Montenegro
  53. Krakow, Poland
  54. Kyiv, Ukraine
  55. Limerick, Ireland
  56. Lisbon, Portugal
  57. Liverpool, England
  58. Ljubljana, Slovenia
  59. London, England
  60. Lucerne, Switzerland
  61. Luxembourg City, Luxembourg
  62. Lyon, France
  63. Madrid, Spain
  64. Malaga, Spain
  65. Malmo, Sweden
  66. Manchester, England
  67. Marbella, Spain
  68. Mdina, Malta
  69. Miami, Florida
  70. Milan, Italy
  71. Minsk, Belarus
  72. Monaco, Principality of Monaco
  73. Mostar, Bosnia and Herzegovina
  74. Murano, Italy
  75. New Orleans, Louisiana
  76. New York City, New York
  77. Nice, France
  78. Nicosia, Cyprus
  79. Oslo, Norway
  80. Pamplona, Spain
  81. Paris, France
  82. Philadelphia, Pennsylvania
  83. Pisa, Italy
  84. Plovdiv, Bulgaria
  85. Podgorica, Montenegro
  86. Porto, Portugal
  87. Prague, Czech Republic
  88. Pristina, Kosovo
  89. Reykjavik, Iceland
  90. Riga, Latvia
  91. Rome, Italy
  92. Ronda, Spain
  93. Sarajevo, Bosnia and Herzegovina
  94. Seville, Spain
  95. Skopje, North Macedonia
  96. Sofia, Bulgaria
  97. Sopot, Poland
  98. Stockholm, Sweden
  99. Tallinn, Estonia
  100. Tenerife, Canary Islands, Spain
  101. Tirana, Albania
  102. Torcello, Italy
  103. Torrevieja, Spain
  104. Toulouse, France
  105. Vaduz, Lichtenstein
  106. Valencia, Spain
  107. Valletta, Malta
  108. Vatican City State, Holy See
  109. Venice, Italy
  110. Verona, Italy
  111. Vienna, Austria
  112. Vilnius, Lithuania
  113. Warsaw, Poland
  114. Waterford, Ireland
  115. Zagreb, Croatia
  116. Zurich, Switzerland