| Somerville to Castelletto sopra Ticino | 3,795.47 mi (6,108.21 km) |
| Somerville to Castelli Calepio | 3,852.28 mi (6,199.65 km) |
| Somerville to Castelnovo ne' Monti | 3,913.33 mi (6,297.90 km) |
| Somerville to Castelnuovo Berardenga | 3,998.19 mi (6,434.46 km) |
| Somerville to Castelnuovo di Porto | 4,084.43 mi (6,573.26 km) |
| Somerville to Castelnuovo di Verona | 3,895.76 mi (6,269.62 km) |
| Somerville to Castelnuovo Rangone | 3,932.38 mi (6,328.56 km) |
| Somerville to Castelvetrano | 4,262.13 mi (6,859.24 km) |
| Somerville to Castelvetro di Modena | 3,934.78 mi (6,332.42 km) |
| Somerville to Castenaso | 3,956.82 mi (6,367.88 km) |
| Somerville to Castenedolo | 3,874.51 mi (6,235.43 km) |
| Somerville to Castiglion Fiorentino | 4,016.30 mi (6,463.62 km) |
| Somerville to Castiglione del Lago | 4,029.08 mi (6,484.18 km) |
| Somerville to Castiglione delle Stiviere | 3,885.50 mi (6,253.10 km) |
| Somerville to Castrolibero | 4,352.53 mi (7,004.72 km) |
