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