| Mason City to Cassina de' Pecchi | 4,689.40 mi (7,546.86 km) |
| Mason City to Cassino | 5,040.79 mi (8,112.36 km) |
| Mason City to Castagneto Carducci | 4,841.08 mi (7,790.97 km) |
| Mason City to Castano Primo | 4,665.55 mi (7,508.48 km) |
| Mason City to Castel Bolognese | 4,833.74 mi (7,779.16 km) |
| Mason City to Castel Gandolfo | 4,984.44 mi (8,021.67 km) |
| Mason City to Castel Goffredo | 4,740.25 mi (7,628.70 km) |
| Mason City to Castel Maggiore | 4,806.28 mi (7,734.97 km) |
| Mason City to Castel Mella | 4,719.21 mi (7,594.83 km) |
| Mason City to Castel San Giorgio | 5,107.58 mi (8,219.86 km) |
| Mason City to Castel San Giovanni | 4,712.55 mi (7,584.11 km) |
| Mason City to Castel San Pietro Terme | 4,821.90 mi (7,760.10 km) |
| Mason City to Castel Volturno | 5,065.23 mi (8,151.71 km) |
| Mason City to Castelbuono | 5,220.96 mi (8,402.32 km) |
| Mason City to Casteldaccia | 5,193.12 mi (8,357.52 km) |
