| Alpena to Cassina de' Pecchi | 4,232.33 mi (6,811.28 km) |
| Alpena to Cassino | 4,579.86 mi (7,370.57 km) |
| Alpena to Castagneto Carducci | 4,379.08 mi (7,047.45 km) |
| Alpena to Castano Primo | 4,207.56 mi (6,771.41 km) |
| Alpena to Castel Bolognese | 4,377.27 mi (7,044.54 km) |
| Alpena to Castel Gandolfo | 4,522.05 mi (7,277.54 km) |
| Alpena to Castel Goffredo | 4,284.44 mi (6,895.14 km) |
| Alpena to Castel Maggiore | 4,349.79 mi (7,000.31 km) |
| Alpena to Castel Mella | 4,263.45 mi (6,861.37 km) |
| Alpena to Castel San Giorgio | 4,646.30 mi (7,477.49 km) |
| Alpena to Castel San Giovanni | 4,254.14 mi (6,846.37 km) |
| Alpena to Castel San Pietro Terme | 4,365.29 mi (7,025.26 km) |
| Alpena to Castel Volturno | 4,603.23 mi (7,408.18 km) |
| Alpena to Castelbuono | 4,751.34 mi (7,646.55 km) |
| Alpena to Casteldaccia | 4,722.81 mi (7,600.63 km) |
