| Sliven to Cassino | 645.49 mi (1,038.82 km) |
| Sliven to Castagneto Carducci | 795.53 mi (1,280.28 km) |
| Sliven to Castano Primo | 891.64 mi (1,434.95 km) |
| Sliven to Castel Bolognese | 736.07 mi (1,184.59 km) |
| Sliven to Castel Gandolfo | 702.32 mi (1,130.27 km) |
| Sliven to Castel Goffredo | 807.30 mi (1,299.23 km) |
| Sliven to Castel Maggiore | 758.65 mi (1,220.93 km) |
| Sliven to Castel Mella | 824.78 mi (1,327.35 km) |
| Sliven to Castel San Giorgio | 613.48 mi (987.31 km) |
| Sliven to Castel San Giovanni | 855.91 mi (1,377.45 km) |
| Sliven to Castel San Pietro Terme | 747.14 mi (1,202.40 km) |
| Sliven to Castel Volturno | 648.15 mi (1,043.10 km) |
| Sliven to Castelbuono | 722.32 mi (1,162.47 km) |
| Sliven to Casteldaccia | 744.95 mi (1,198.89 km) |
| Sliven to Castelfidardo | 646.99 mi (1,041.23 km) |
