| Highlands Ranch to Castelletto sopra Ticino | 5,258.22 mi (8,462.28 km) |
| Highlands Ranch to Castelli Calepio | 5,306.43 mi (8,539.87 km) |
| Highlands Ranch to Castelnovo ne' Monti | 5,381.81 mi (8,661.19 km) |
| Highlands Ranch to Castelnuovo Berardenga | 5,473.74 mi (8,809.13 km) |
| Highlands Ranch to Castelnuovo di Porto | 5,569.07 mi (8,962.54 km) |
| Highlands Ranch to Castelnuovo di Verona | 5,346.09 mi (8,603.70 km) |
| Highlands Ranch to Castelnuovo Rangone | 5,394.82 mi (8,682.13 km) |
| Highlands Ranch to Castelvetrano | 5,802.43 mi (9,338.10 km) |
| Highlands Ranch to Castelvetro di Modena | 5,397.84 mi (8,686.99 km) |
| Highlands Ranch to Castenaso | 5,415.50 mi (8,715.41 km) |
| Highlands Ranch to Castenedolo | 5,328.03 mi (8,574.64 km) |
| Highlands Ranch to Castiglion Fiorentino | 5,488.51 mi (8,832.91 km) |
| Highlands Ranch to Castiglione del Lago | 5,503.19 mi (8,856.53 km) |
| Highlands Ranch to Castiglione delle Stiviere | 5,338.48 mi (8,591.45 km) |
| Highlands Ranch to Castrolibero | 5,843.42 mi (9,404.07 km) |
