| Williamstown to Castelletto sopra Ticino | 4,067.66 mi (6,546.27 km) |
| Williamstown to Castelli Calepio | 4,124.74 mi (6,638.14 km) |
| Williamstown to Castelnovo ne' Monti | 4,185.06 mi (6,735.20 km) |
| Williamstown to Castelnuovo Berardenga | 4,269.40 mi (6,870.94 km) |
| Williamstown to Castelnuovo di Porto | 4,354.99 mi (7,008.68 km) |
| Williamstown to Castelnuovo di Verona | 4,168.31 mi (6,708.25 km) |
| Williamstown to Castelnuovo Rangone | 4,204.35 mi (6,766.25 km) |
| Williamstown to Castelvetrano | 4,528.40 mi (7,287.75 km) |
| Williamstown to Castelvetro di Modena | 4,206.72 mi (6,770.06 km) |
| Williamstown to Castenaso | 4,228.91 mi (6,805.78 km) |
| Williamstown to Castenedolo | 4,146.97 mi (6,673.90 km) |
| Williamstown to Castiglion Fiorentino | 4,287.66 mi (6,900.32 km) |
| Williamstown to Castiglione del Lago | 4,300.31 mi (6,920.68 km) |
| Williamstown to Castiglione delle Stiviere | 4,157.96 mi (6,691.58 km) |
| Williamstown to Castrolibero | 4,622.18 mi (7,438.68 km) |
