| | nr | Hauptstadt | Einwohner | Land | Kontinent | | 22 | Bayr1/4t | 1500000 | Libanon | AF |
| 23 | Beijing | 80000 | China, Volksrep | AS |
| 24 | Belgrad | 1168454 | Jugoslawien | EU |
| 25 | Belmopan | 6785 | Belize | AM |
| 26 | Bern | 124412 | Schweiz | EU |
| 27 | Biskek | 583900 | Kirgisistan | AS |
| 28 | Bissau | 125000 | Guinea-Bissau | AF |
| 29 | Brasília | 1821946 | Brasilien | AM |
| 30 | Brazzaville | 937600 | Kongo, Republik | AF |
| 31 | Bridgetown | 6720 | Barbados | AM |
| 32 | Brüssel | 948122 | Belgien | EU |
| 33 | Budapest | 1907000 | Ungarn | EU |
| 34 | Buenos Aires | 10990000 | Argentinien | AM |
| 35 | Bujumbura | 300000 | Burundi | AF |
| 36 | Bukarest | 2037278 | Rumänien | EU |
| 37 | Caracas | 3400000 | Venezuela | AM |
| 38 | Castries | 54568 | St. Lucia | AM |
| 39 | Chisinau | 667100 | Moldau | EU |
| 40 | Ciudad | 15000000 | Mexiko | AM |
| 41 | Colombo | 1994000 | Sri Lanka | AS |
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