| Romeoville to Castelletto sopra Ticino | 4,526.82 mi (7,285.22 km) |
| Romeoville to Castelli Calepio | 4,579.84 mi (7,370.54 km) |
| Romeoville to Castelnovo ne' Monti | 4,648.69 mi (7,481.35 km) |
| Romeoville to Castelnuovo Berardenga | 4,737.86 mi (7,624.84 km) |
| Romeoville to Castelnuovo di Porto | 4,829.37 mi (7,772.12 km) |
| Romeoville to Castelnuovo di Verona | 4,621.82 mi (7,438.11 km) |
| Romeoville to Castelnuovo Rangone | 4,664.89 mi (7,507.41 km) |
| Romeoville to Castelvetrano | 5,035.71 mi (8,104.18 km) |
| Romeoville to Castelvetro di Modena | 4,667.62 mi (7,511.82 km) |
| Romeoville to Castenaso | 4,687.67 mi (7,544.08 km) |
| Romeoville to Castenedolo | 4,601.98 mi (7,406.17 km) |
| Romeoville to Castiglion Fiorentino | 4,754.47 mi (7,651.58 km) |
| Romeoville to Castiglione del Lago | 4,768.31 mi (7,673.85 km) |
| Romeoville to Castiglione delle Stiviere | 4,612.80 mi (7,423.58 km) |
| Romeoville to Castrolibero | 5,102.73 mi (8,212.06 km) |
