| Opelika to Castelletto sopra Ticino | 4,822.96 mi (7,761.80 km) |
| Opelika to Castelli Calepio | 4,880.10 mi (7,853.76 km) |
| Opelika to Castelnovo ne' Monti | 4,940.18 mi (7,950.45 km) |
| Opelika to Castelnuovo Berardenga | 5,024.27 mi (8,085.78 km) |
| Opelika to Castelnuovo di Porto | 5,109.43 mi (8,222.83 km) |
| Opelika to Castelnuovo di Verona | 4,923.67 mi (7,923.89 km) |
| Opelika to Castelnuovo Rangone | 4,959.57 mi (7,981.66 km) |
| Opelika to Castelvetrano | 5,278.43 mi (8,494.81 km) |
| Opelika to Castelvetro di Modena | 4,961.93 mi (7,985.45 km) |
| Opelika to Castenaso | 4,984.17 mi (8,021.25 km) |
| Opelika to Castenedolo | 4,902.32 mi (7,889.52 km) |
| Opelika to Castiglion Fiorentino | 5,042.59 mi (8,115.27 km) |
| Opelika to Castiglione del Lago | 5,055.18 mi (8,135.53 km) |
| Opelika to Castiglione delle Stiviere | 4,913.31 mi (7,907.20 km) |
| Opelika to Castrolibero | 5,375.85 mi (8,651.59 km) |
