| Altena to Castelli Calepio | 404.63 mi (651.18 km) |
| Altena to Castelnovo ne' Monti | 490.97 mi (790.15 km) |
| Altena to Castelnuovo Berardenga | 577.91 mi (930.06 km) |
| Altena to Castelnuovo di Porto | 673.09 mi (1,083.24 km) |
| Altena to Castelnuovo di Verona | 429.50 mi (691.21 km) |
| Altena to Castelnuovo Rangone | 490.16 mi (788.84 km) |
| Altena to Castelvetrano | 973.55 mi (1,566.77 km) |
| Altena to Castelvetro di Modena | 493.71 mi (794.54 km) |
| Altena to Castenaso | 500.98 mi (806.25 km) |
| Altena to Castenedolo | 420.40 mi (676.57 km) |
| Altena to Castiglion Fiorentino | 584.42 mi (940.54 km) |
| Altena to Castiglione del Lago | 599.93 mi (965.50 km) |
| Altena to Castiglione delle Stiviere | 427.82 mi (688.51 km) |
| Altena to Castrolibero | 924.53 mi (1,487.88 km) |
| Altena to Castrovillari | 892.98 mi (1,437.12 km) |
