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