| Harker Heights to Castelletto sopra Ticino | 5,414.50 mi (8,713.80 km) |
| Harker Heights to Castelli Calepio | 5,468.77 mi (8,801.13 km) |
| Harker Heights to Castelnovo ne' Monti | 5,535.35 mi (8,908.29 km) |
| Harker Heights to Castelnuovo Berardenga | 5,623.25 mi (9,049.74 km) |
| Harker Heights to Castelnuovo di Porto | 5,713.05 mi (9,194.27 km) |
| Harker Heights to Castelnuovo di Verona | 5,511.27 mi (8,869.53 km) |
| Harker Heights to Castelnuovo Rangone | 5,552.49 mi (8,935.87 km) |
| Harker Heights to Castelvetrano | 5,906.80 mi (9,506.08 km) |
| Harker Heights to Castelvetro di Modena | 5,555.13 mi (8,940.11 km) |
| Harker Heights to Castenaso | 5,575.83 mi (8,973.43 km) |
| Harker Heights to Castenedolo | 5,490.98 mi (8,836.87 km) |
| Harker Heights to Castiglion Fiorentino | 5,640.41 mi (9,077.36 km) |
| Harker Heights to Castiglione del Lago | 5,653.91 mi (9,099.09 km) |
| Harker Heights to Castiglione delle Stiviere | 5,501.87 mi (8,854.40 km) |
| Harker Heights to Castrolibero | 5,984.89 mi (9,631.75 km) |
