| Castleton to Montevarchi | 933.99 mi (1,503.11 km) |
| Castleton to Monticello Conte Otto | 824.73 mi (1,327.28 km) |
| Castleton to Montichiari | 795.86 mi (1,280.81 km) |
| Castleton to Montignoso | 865.25 mi (1,392.48 km) |
| Castleton to Montopoli in Val d'Arno | 901.88 mi (1,451.44 km) |
| Castleton to Monza | 752.52 mi (1,211.06 km) |
| Castleton to Morbegno | 732.36 mi (1,178.62 km) |
| Castleton to Mori | 792.38 mi (1,275.21 km) |
| Castleton to Morlupo | 1,039.17 mi (1,672.38 km) |
| Castleton to Morrovalle | 1,008.31 mi (1,622.72 km) |
| Castleton to Mortara | 755.36 mi (1,215.63 km) |
| Castleton to Mosciano Sant'Angelo | 1,048.20 mi (1,686.92 km) |
| Castleton to Motta di Livenza | 850.31 mi (1,368.44 km) |
| Castleton to Motta Sant'Anastasia | 1,379.35 mi (2,219.85 km) |
| Castleton to Mottola | 1,263.92 mi (2,034.09 km) |
