| Gretna to Bollullos par del Condado | 4,674.19 mi (7,522.38 km) |
| Gretna to Bormujos | 4,697.41 mi (7,559.76 km) |
| Gretna to Brenes | 4,702.95 mi (7,568.66 km) |
| Gretna to Brunete | 4,724.13 mi (7,602.75 km) |
| Gretna to Bueu | 4,445.59 mi (7,154.49 km) |
| Gretna to Bullas | 4,901.22 mi (7,887.74 km) |
| Gretna to Bunol | 4,906.87 mi (7,896.84 km) |
| Gretna to Burela de Cabo | 4,483.24 mi (7,215.08 km) |
| Gretna to Burgos | 4,689.74 mi (7,547.40 km) |
| Gretna to Burjasot | 4,923.22 mi (7,923.15 km) |
| Gretna to Burriana | 4,927.84 mi (7,930.59 km) |
| Gretna to Cabanaquinta | 4,581.87 mi (7,373.81 km) |
| Gretna to Cabanillas del Campo | 4,755.05 mi (7,652.52 km) |
| Gretna to Cabra | 4,777.95 mi (7,689.37 km) |
| Gretna to Caceres | 4,629.59 mi (7,450.61 km) |
