| On Top of the World Designated Place to Cividale del Friuli | 5,053.16 mi (8,132.28 km) |
| On Top of the World Designated Place to Civita Castellana | 5,117.88 mi (8,236.44 km) |
| On Top of the World Designated Place to Civitanova Marche | 5,148.79 mi (8,286.18 km) |
| On Top of the World Designated Place to Civitavecchia | 5,095.29 mi (8,200.07 km) |
| On Top of the World Designated Place to Civitella in Val di Chiana | 5,053.58 mi (8,132.95 km) |
| On Top of the World Designated Place to Clusone | 4,906.00 mi (7,895.44 km) |
| On Top of the World Designated Place to Coccaglio | 4,915.77 mi (7,911.17 km) |
| On Top of the World Designated Place to Codigoro | 5,031.35 mi (8,097.18 km) |
| On Top of the World Designated Place to Codogno | 4,914.27 mi (7,908.76 km) |
| On Top of the World Designated Place to Codroipo | 5,037.31 mi (8,106.76 km) |
| On Top of the World Designated Place to Cogoleto | 4,886.61 mi (7,864.24 km) |
| On Top of the World Designated Place to Colle di Val d'Elsa | 5,027.35 mi (8,090.73 km) |
| On Top of the World Designated Place to Colle Salvetti | 4,991.96 mi (8,033.79 km) |
| On Top of the World Designated Place to Collecchio | 4,948.34 mi (7,963.58 km) |
| On Top of the World Designated Place to Colleferro | 5,162.68 mi (8,308.52 km) |
