| Potomac Park to Belvedere Marittimo | 6,511.01 mi (10,478.47 km) |
| Potomac Park to Benevento | 6,392.67 mi (10,288.00 km) |
| Potomac Park to Bergamo | 5,986.50 mi (9,634.34 km) |
| Potomac Park to Bernalda | 6,490.69 mi (10,445.76 km) |
| Potomac Park to Bertinoro | 6,145.19 mi (9,889.72 km) |
| Potomac Park to Besana in Brianza | 5,974.30 mi (9,614.70 km) |
| Potomac Park to Besozzo | 5,947.22 mi (9,571.13 km) |
| Potomac Park to Biancavilla | 6,589.59 mi (10,604.92 km) |
| Potomac Park to Biassono | 5,977.32 mi (9,619.56 km) |
| Potomac Park to Bibbiano | 6,066.04 mi (9,762.35 km) |
| Potomac Park to Bibbiena | 6,159.97 mi (9,913.51 km) |
| Potomac Park to Biella | 5,943.28 mi (9,564.78 km) |
| Potomac Park to Bisceglie | 6,438.54 mi (10,361.83 km) |
| Potomac Park to Bisignano | 6,529.48 mi (10,508.18 km) |
| Potomac Park to Bitetto | 6,457.71 mi (10,392.68 km) |
