| Castleton to Bilecik | 1,758.11 mi (2,829.41 km) |
| Castleton to Bingol | 2,234.33 mi (3,595.81 km) |
| Castleton to Birecik | 2,220.10 mi (3,572.90 km) |
| Castleton to Bitlis | 2,321.60 mi (3,736.25 km) |
| Castleton to Bodrum | 1,814.95 mi (2,920.88 km) |
| Castleton to Bogazliyan | 2,009.36 mi (3,233.76 km) |
| Castleton to Bolu | 1,794.58 mi (2,888.09 km) |
| Castleton to Bolvadin | 1,867.40 mi (3,005.29 km) |
| Castleton to Bor | 2,044.34 mi (3,290.04 km) |
| Castleton to Borcka | 2,173.09 mi (3,497.26 km) |
| Castleton to Boyabat | 1,888.24 mi (3,038.83 km) |
| Castleton to Bozdogan | 1,815.11 mi (2,921.13 km) |
| Castleton to Bozkir | 1,988.15 mi (3,199.61 km) |
| Castleton to Bozkurt | 1,856.85 mi (2,988.31 km) |
| Castleton to Bozuyuk | 1,771.40 mi (2,850.79 km) |
