| Biddeford to Castelletto sopra Ticino | 3,727.78 mi (5,999.28 km) |
| Biddeford to Castelli Calepio | 3,784.26 mi (6,090.19 km) |
| Biddeford to Castelnovo ne' Monti | 3,846.16 mi (6,189.80 km) |
| Biddeford to Castelnuovo Berardenga | 3,931.54 mi (6,327.20 km) |
| Biddeford to Castelnuovo di Porto | 4,018.42 mi (6,467.03 km) |
| Biddeford to Castelnuovo di Verona | 3,827.64 mi (6,159.98 km) |
| Biddeford to Castelnuovo Rangone | 3,864.93 mi (6,220.00 km) |
| Biddeford to Castelvetrano | 4,199.77 mi (6,758.87 km) |
| Biddeford to Castelvetro di Modena | 3,867.37 mi (6,223.93 km) |
| Biddeford to Castenaso | 3,889.22 mi (6,259.09 km) |
| Biddeford to Castenedolo | 3,806.51 mi (6,125.98 km) |
| Biddeford to Castiglion Fiorentino | 3,949.51 mi (6,356.12 km) |
| Biddeford to Castiglione del Lago | 3,962.41 mi (6,376.88 km) |
| Biddeford to Castiglione delle Stiviere | 3,817.49 mi (6,143.65 km) |
| Biddeford to Castrolibero | 4,287.32 mi (6,899.77 km) |
