| Horizon City to Cividale del Friuli | 5,874.60 mi (9,454.25 km) |
| Horizon City to Civita Castellana | 6,012.05 mi (9,675.46 km) |
| Horizon City to Civitanova Marche | 6,015.53 mi (9,681.06 km) |
| Horizon City to Civitavecchia | 5,997.58 mi (9,652.17 km) |
| Horizon City to Civitella in Val di Chiana | 5,934.56 mi (9,550.75 km) |
| Horizon City to Clusone | 5,757.98 mi (9,266.57 km) |
| Horizon City to Coccaglio | 5,773.17 mi (9,291.01 km) |
| Horizon City to Codigoro | 5,885.08 mi (9,471.12 km) |
| Horizon City to Codogno | 5,780.76 mi (9,303.23 km) |
| Horizon City to Codroipo | 5,864.73 mi (9,438.37 km) |
| Horizon City to Cogoleto | 5,774.30 mi (9,292.84 km) |
| Horizon City to Colle di Val d'Elsa | 5,913.17 mi (9,516.33 km) |
| Horizon City to Colle Salvetti | 5,879.42 mi (9,462.01 km) |
| Horizon City to Collecchio | 5,818.11 mi (9,363.35 km) |
| Horizon City to Colleferro | 6,061.18 mi (9,754.53 km) |
