| Columbia Heights to Collegno | 4,557.08 mi (7,333.92 km) |
| Columbia Heights to Cologno al Serio | 4,612.15 mi (7,422.54 km) |
| Columbia Heights to Cologno Monzese | 4,599.33 mi (7,401.91 km) |
| Columbia Heights to Colorno | 4,666.85 mi (7,510.56 km) |
| Columbia Heights to Comacchio | 4,742.77 mi (7,632.75 km) |
| Columbia Heights to Comiso | 5,208.40 mi (8,382.11 km) |
| Columbia Heights to Como | 4,579.54 mi (7,370.05 km) |
| Columbia Heights to Concordia Sagittaria | 4,716.19 mi (7,589.98 km) |
| Columbia Heights to Concorezzo | 4,598.64 mi (7,400.80 km) |
| Columbia Heights to Conegliano | 4,691.05 mi (7,549.52 km) |
| Columbia Heights to Conselice | 4,738.79 mi (7,626.35 km) |
| Columbia Heights to Conselve | 4,706.36 mi (7,574.16 km) |
| Columbia Heights to Conversano | 5,101.75 mi (8,210.48 km) |
| Columbia Heights to Copertino | 5,170.52 mi (8,321.15 km) |
| Columbia Heights to Copparo | 4,720.79 mi (7,597.38 km) |
