| Harmanli to Castelli Calepio | 836.38 mi (1,346.03 km) |
| Harmanli to Castelnovo ne' Monti | 798.46 mi (1,285.00 km) |
| Harmanli to Castelnuovo Berardenga | 737.23 mi (1,186.45 km) |
| Harmanli to Castelnuovo di Porto | 687.11 mi (1,105.80 km) |
| Harmanli to Castelnuovo di Verona | 792.46 mi (1,275.34 km) |
| Harmanli to Castelnuovo Rangone | 773.49 mi (1,244.81 km) |
| Harmanli to Castelvetrano | 754.08 mi (1,213.58 km) |
| Harmanli to Castelvetro di Modena | 772.18 mi (1,242.71 km) |
| Harmanli to Castenaso | 746.90 mi (1,202.03 km) |
| Harmanli to Castenedolo | 815.27 mi (1,312.05 km) |
| Harmanli to Castiglion Fiorentino | 716.41 mi (1,152.96 km) |
| Harmanli to Castiglione del Lago | 709.31 mi (1,141.53 km) |
| Harmanli to Castiglione delle Stiviere | 804.62 mi (1,294.92 km) |
| Harmanli to Castrolibero | 539.47 mi (868.20 km) |
| Harmanli to Castrovillari | 527.11 mi (848.30 km) |
