| Name | Country | 14C dates | |
|---|---|---|---|
|
821-840 / 936 show all | |||
| Blekinge | Sweden | 10 | Show |
| Blagoevgrad | Bulgaria | 15 | Show |
| Bizkaia | Spain | 3 | Show |
| Bitola | North Macedonia | 6 | Show |
| Bistrita-Nasaud | Romania | 45 | Show |
| Birmingham | United Kingdom | 5 | Show |
| Bihor | Romania | 1 | Show |
| Bihar | India | 1 | Show |
| Bern | Switzerland | 44 | Show |
| Berlin | Germany | 3 | Show |
| Bergamo | Italy | 3 | Show |
| Beqaa | Lebanon | 7 | Show |
| Belluno | Italy | 1 | Show |
| Belfast | United Kingdom | 2 | Show |
| Békés | Hungary | 57 | Show |
| Beja | Portugal | 57 | Show |
| Bedford | United Kingdom | 6 | Show |
| Bayern | Germany | 534 | Show |
| Batman | Turkey | 32 | Show |
| Bath and North East Somerset | United Kingdom | 2 | Show |
