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. Burano, Italy
  25. Cannes, France
  26. Cardiff, Wales
  27. Chicago, Illinois
  28. Chisinau, Moldova
  29. City of San Marino, San Marino
  30. Cologne, Germany
  31. Copenhagen, Denmark
  32. Cordoba, Spain
  33. Cork, Ireland
  34. Crete, Greece
  35. Derry, Northern Ireland
  36. Dublin, Ireland
  37. Edinburgh, Scotland
  38. Florence, Italy
  39. Frankfurt, Germany
  40. Galway, Ireland
  41. Gdansk, Poland
  42. Gdynia, Poland
  43. Gibraltar, British Overseas Territory
  44. Glasgow, Scotland
  45. Gothenburg, Sweden
  46. Gozo Island, Malta
  47. Granada, Spain
  48. Helsinki, Finland
  49. Kilkenny, Ireland
  50. Koprivshtitsa, Bulgaria
  51. Krakow, Poland
  52. Kyiv, Ukraine
  53. Limerick, Ireland
  54. Lisbon, Portugal
  55. Liverpool, England
  56. Ljubljana, Slovenia
  57. London, England
  58. Lucerne, Switzerland
  59. Luxembourg City, Luxembourg
  60. Lyon, France
  61. Madrid, Spain
  62. Malaga, Spain
  63. Malmo, Sweden
  64. Manchester, England
  65. Marbella, Spain
  66. Mdina, Malta
  67. Miami, Florida
  68. Milan, Italy
  69. Minsk, Belarus
  70. Monaco, Principality of Monaco
  71. Mostar, Bosnia and Herzegovina
  72. Murano, Italy
  73. New Orleans, Louisiana
  74. New York City, New York
  75. Nice, France
  76. Nicosia, Cyprus
  77. Oslo, Norway
  78. Pamplona, Spain
  79. Paris, France
  80. Philadelphia, Pennsylvania
  81. Pisa, Italy
  82. Plovdiv, Bulgaria
  83. Podgorica, Montenegro
  84. Porto, Portugal
  85. Prague, Czech Republic
  86. Pristina, Kosovo
  87. Riga, Latvia
  88. Rome, Italy
  89. Ronda, Spain
  90. Sarajevo, Bosnia and Herzegovina
  91. Seville, Spain
  92. Skopje, North Macedonia
  93. Sofia, Bulgaria
  94. Sopot, Poland
  95. Stockholm, Sweden
  96. Tallinn, Estonia
  97. Tenerife, Canary Islands, Spain
  98. Tirana, Albania
  99. Torcello, Italy
  100. Torrevieja, Spain
  101. Toulouse, France
  102. Vaduz, Lichtenstein
  103. Valencia, Spain
  104. Valletta, Malta
  105. Vatican City State, Holy See
  106. Venice, Italy
  107. Verona, Italy
  108. Vienna, Austria
  109. Vilnius, Lithuania
  110. Warsaw, Poland
  111. Waterford, Ireland
  112. Zagreb, Croatia
  113. Zurich, Switzerland