| Niagara Falls to Castelfidardo | 4,387.09 mi (7,060.33 km) |
| Niagara Falls to Castelfiorentino | 4,275.58 mi (6,880.88 km) |
| Niagara Falls to Castelfranco di Sopra | 4,299.12 mi (6,918.77 km) |
| Niagara Falls to Castelfranco di Sotto | 4,262.73 mi (6,860.20 km) |
| Niagara Falls to Castelfranco Emilia | 4,240.71 mi (6,824.76 km) |
| Niagara Falls to Castelfranco Veneto | 4,235.43 mi (6,816.26 km) |
| Niagara Falls to Castellabate | 4,575.77 mi (7,363.99 km) |
| Niagara Falls to Castellammare del Golfo | 4,581.41 mi (7,373.07 km) |
| Niagara Falls to Castellammare di Stabia | 4,538.64 mi (7,304.24 km) |
| Niagara Falls to Castellamonte | 4,074.04 mi (6,556.53 km) |
| Niagara Falls to Castellana Grotte | 4,642.27 mi (7,471.01 km) |
| Niagara Falls to Castellaneta | 4,643.29 mi (7,472.65 km) |
| Niagara Falls to Castellanza | 4,114.29 mi (6,621.31 km) |
| Niagara Falls to Castellarano | 4,230.81 mi (6,808.84 km) |
| Niagara Falls to Castelleone | 4,161.39 mi (6,697.12 km) |
