| Highlands Ranch to Castelfidardo | 5,539.19 mi (8,914.46 km) |
| Highlands Ranch to Castelfiorentino | 5,442.35 mi (8,758.62 km) |
| Highlands Ranch to Castelfranco di Sopra | 5,462.06 mi (8,790.33 km) |
| Highlands Ranch to Castelfranco di Sotto | 5,429.80 mi (8,738.42 km) |
| Highlands Ranch to Castelfranco Emilia | 5,396.71 mi (8,685.17 km) |
| Highlands Ranch to Castelfranco Veneto | 5,374.64 mi (8,649.66 km) |
| Highlands Ranch to Castellabate | 5,749.72 mi (9,253.28 km) |
| Highlands Ranch to Castellammare del Golfo | 5,788.45 mi (9,315.61 km) |
| Highlands Ranch to Castellammare di Stabia | 5,711.76 mi (9,192.20 km) |
| Highlands Ranch to Castellamonte | 5,241.42 mi (8,435.26 km) |
| Highlands Ranch to Castellana Grotte | 5,795.79 mi (9,327.42 km) |
| Highlands Ranch to Castellaneta | 5,800.77 mi (9,335.44 km) |
| Highlands Ranch to Castellanza | 5,272.32 mi (8,484.98 km) |
| Highlands Ranch to Castellarano | 5,388.77 mi (8,672.39 km) |
| Highlands Ranch to Castelleone | 5,317.79 mi (8,558.16 km) |
