| Columbia Heights to Cividale del Friuli | 4,720.89 mi (7,597.54 km) |
| Columbia Heights to Civita Castellana | 4,865.14 mi (7,829.68 km) |
| Columbia Heights to Civitanova Marche | 4,865.26 mi (7,829.87 km) |
| Columbia Heights to Civitavecchia | 4,851.90 mi (7,808.37 km) |
| Columbia Heights to Civitella in Val di Chiana | 4,786.39 mi (7,702.96 km) |
| Columbia Heights to Clusone | 4,607.45 mi (7,414.98 km) |
| Columbia Heights to Coccaglio | 4,623.14 mi (7,440.23 km) |
| Columbia Heights to Codigoro | 4,734.10 mi (7,618.80 km) |
| Columbia Heights to Codogno | 4,631.72 mi (7,454.04 km) |
| Columbia Heights to Codroipo | 4,711.50 mi (7,582.42 km) |
| Columbia Heights to Cogoleto | 4,628.04 mi (7,448.12 km) |
| Columbia Heights to Colle di Val d'Elsa | 4,765.76 mi (7,669.75 km) |
| Columbia Heights to Colle Salvetti | 4,732.44 mi (7,616.13 km) |
| Columbia Heights to Collecchio | 4,669.25 mi (7,514.44 km) |
| Columbia Heights to Colleferro | 4,914.55 mi (7,909.21 km) |
