| Rhondda to Castelletto sopra Ticino | 683.08 mi (1,099.31 km) |
| Rhondda to Castelli Calepio | 733.63 mi (1,180.66 km) |
| Rhondda to Castelnovo ne' Monti | 806.46 mi (1,297.87 km) |
| Rhondda to Castelnuovo Berardenga | 898.07 mi (1,445.31 km) |
| Rhondda to Castelnuovo di Porto | 993.40 mi (1,598.72 km) |
| Rhondda to Castelnuovo di Verona | 774.98 mi (1,247.21 km) |
| Rhondda to Castelnuovo Rangone | 820.50 mi (1,320.47 km) |
| Rhondda to Castelvetrano | 1,243.86 mi (2,001.80 km) |
| Rhondda to Castelvetro di Modena | 823.42 mi (1,325.16 km) |
| Rhondda to Castenaso | 842.24 mi (1,355.45 km) |
| Rhondda to Castenedolo | 755.62 mi (1,216.06 km) |
| Rhondda to Castiglion Fiorentino | 913.13 mi (1,469.54 km) |
| Rhondda to Castiglione del Lago | 927.68 mi (1,492.95 km) |
| Rhondda to Castiglione delle Stiviere | 766.34 mi (1,233.30 km) |
| Rhondda to Castrolibero | 1,267.69 mi (2,040.16 km) |
