| Altadena to Cividale del Friuli | 6,121.87 mi (9,852.20 km) |
| Altadena to Civita Castellana | 6,295.68 mi (10,131.92 km) |
| Altadena to Civitanova Marche | 6,283.15 mi (10,111.75 km) |
| Altadena to Civitavecchia | 6,286.47 mi (10,117.09 km) |
| Altadena to Civitella in Val di Chiana | 6,213.48 mi (9,999.63 km) |
| Altadena to Clusone | 6,027.15 mi (9,699.77 km) |
| Altadena to Coccaglio | 6,044.81 mi (9,728.19 km) |
| Altadena to Codigoro | 6,150.29 mi (9,897.93 km) |
| Altadena to Codogno | 6,057.27 mi (9,748.23 km) |
| Altadena to Codroipo | 6,115.79 mi (9,842.41 km) |
| Altadena to Cogoleto | 6,063.15 mi (9,757.69 km) |
| Altadena to Colle di Val d'Elsa | 6,195.70 mi (9,971.01 km) |
| Altadena to Colle Salvetti | 6,164.16 mi (9,920.25 km) |
| Altadena to Collecchio | 6,095.06 mi (9,809.05 km) |
| Altadena to Colleferro | 6,345.50 mi (10,212.10 km) |
