I have been to 96 of them (not counting capitals of N. Ireland, Scotland, HKG, Macau, etc...). 97 if we count Taipei. Honestly had no idea Bern was the capital of Switzerland until looking at that list ��
1. Tirana, Albania
2. Algiers, Algeria
3. Andorra La Vella, Andorra
4. Buenos Aires, Argentina
5. Yerevan, Armenia
6. Vienna, Austria
7. Baku, Azerbaijan
8. Nassau, Bahamas
9. Manama, Bahrain
10. Dhaka, Bangladesh
11. Bridgetown, Barbados
12. Minsk, Belarus
13. Brussels, Belgium
14. Bandar Seri Begawan, Brunei
15. Sofia, Bulgaria
16. Phnom Penh, Cambodia
17. Santiago, Chile
18. Beijing, China
19. Bogota, Colombia
20. Zagreb, Croatia
21. Havana, Cuba
22. Nicosia, Cyprus
23. Prague, Czech Republic
24. Copenhagen, Denmark
25. Cairo, Egypt
26. Tallinn, Estonia
27. Helsinki, Finland
28, Paris, France
29. Tbilisi, Georgia
30. Berlin, Germany
31. Accra, Ghana
32. Athens, Greece
33. Budapest, Hungary
34. Reykjavik, Iceland
35. New Delhi, India
36. Jakarta, Indonesia
37. Tehran, Iran
38. Dublin, Ireland
39. Tel Aviv, Israel
40. Rome, Italy
41. Kingston, Jamaica
42. Tokyo, Japan
43. Amman, Jordan
44. Astana, Kazakhstan (Astana is now called Nur Sultan I think?)
45. Pristina, Kosovo
46. Kuwait City, Kuwait
47. Bishkek, Kyrgyzstan
48. Vientiane, Laos
49. Riga, Latvia
50. Beirut, Lebanon
51. Vaduz, Liechtenstein
52. Vilnius, Lithuania
53. Luxembourg City, Luxembourg
54. Kuala Lumpur, Malaysia
55. Valletta, Malta
56. Mexico City, Mexico
57. Chisinau, Moldova
58. Monaco, Monaco
59. Ulaanbaatar, Mongolia
60. Podgorica, Montenegro
61. Windhoek, Namibia
62. Kathmandu, Nepal
63. Amsterdam, Netherlands
64. Pyongyang, North Korea
65. Skopje, North Macedonia
66. Oslo, Norway
67. Muscat, Oman
68. Jerusalem, Palestine
69. Panama City, Panama
70. Manila, Philippines
71. Warsaw, Poland
72. Lisbon, Portugal
73. Doha, Qatar
74. Bucharest, Romania
75. Moscow, Russia
76. San Marino, San Marino
77. Sao Tome, Sao Tome & Principe
78. Belgrade, Serbia
79. Singapore, Singapore
80. Bratislava, Slovakia
81. Ljubljana, Slovenia
82. Cape Town, South Africa
83. Seoul, South Korea
84. Madrid, Spain
85. Colombo, Sri Lanka
86. Stockholm, Sweden
87. Bangkok, Thailand
88. Tunis, Tunisia
89. Ashgabat, Turkmenistan
90. Kiev, Ukraine
91. Abu Dhabi, UAE
92. London, UK
93. Washington D.C., USA
94. Tashkent, Uzbekistan
95. Vatican City, Vatican City
96. Hanoi, Vietnam
others that COULD be considered, but were not listed
ALL CAPITALS
97. Taipei, Taiwan
98. Tiraspol, Transnistria
99. North Nicosia, Northern Cyprus
100. Hong Kong, Hong Kong SAR
101. Macau, Macau
102. Belfast, Northern Ireland
103. Edinburgh, Scotland
and i've been to a bunch of countries without going to the capital it seems.