| Niagara Falls to Montevarchi | 4,303.32 mi (6,925.52 km) |
| Niagara Falls to Monticello Conte Otto | 4,223.89 mi (6,797.69 km) |
| Niagara Falls to Montichiari | 4,182.61 mi (6,731.25 km) |
| Niagara Falls to Montignoso | 4,226.41 mi (6,801.75 km) |
| Niagara Falls to Montopoli in Val d'Arno | 4,264.02 mi (6,862.27 km) |
| Niagara Falls to Monza | 4,130.78 mi (6,647.85 km) |
| Niagara Falls to Morbegno | 4,122.41 mi (6,634.37 km) |
| Niagara Falls to Mori | 4,190.22 mi (6,743.50 km) |
| Niagara Falls to Morlupo | 4,396.94 mi (7,076.19 km) |
| Niagara Falls to Morrovalle | 4,394.52 mi (7,072.29 km) |
| Niagara Falls to Mortara | 4,121.64 mi (6,633.14 km) |
| Niagara Falls to Mosciano Sant'Angelo | 4,429.65 mi (7,128.83 km) |
| Niagara Falls to Motta di Livenza | 4,258.16 mi (6,852.84 km) |
| Niagara Falls to Motta Sant'Anastasia | 4,693.83 mi (7,553.99 km) |
| Niagara Falls to Mottola | 4,647.42 mi (7,479.30 km) |
