| Rockville to Castelletto sopra Ticino | 4,185.99 mi (6,736.70 km) |
| Rockville to Castelli Calepio | 4,242.83 mi (6,828.18 km) |
| Rockville to Castelnovo ne' Monti | 4,303.77 mi (6,926.25 km) |
| Rockville to Castelnuovo Berardenga | 4,388.49 mi (7,062.59 km) |
| Rockville to Castelnuovo di Porto | 4,474.50 mi (7,201.02 km) |
| Rockville to Castelnuovo di Verona | 4,286.32 mi (6,898.17 km) |
| Rockville to Castelnuovo Rangone | 4,322.87 mi (6,956.99 km) |
| Rockville to Castelvetrano | 4,649.81 mi (7,483.15 km) |
| Rockville to Castelvetro di Modena | 4,325.27 mi (6,960.84 km) |
| Rockville to Castenaso | 4,347.33 mi (6,996.35 km) |
| Rockville to Castenedolo | 4,265.07 mi (6,863.96 km) |
| Rockville to Castiglion Fiorentino | 4,406.65 mi (7,091.81 km) |
| Rockville to Castiglione del Lago | 4,419.38 mi (7,112.31 km) |
| Rockville to Castiglione delle Stiviere | 4,276.05 mi (6,881.64 km) |
| Rockville to Castrolibero | 4,742.21 mi (7,631.85 km) |
