| Pen-y-Bont ar Ogwr to Castelletto sopra Ticino | 685.06 mi (1,102.50 km) |
| Pen-y-Bont ar Ogwr to Castelli Calepio | 736.10 mi (1,184.64 km) |
| Pen-y-Bont ar Ogwr to Castelnovo ne' Monti | 808.32 mi (1,300.86 km) |
| Pen-y-Bont ar Ogwr to Castelnuovo Berardenga | 899.73 mi (1,447.98 km) |
| Pen-y-Bont ar Ogwr to Castelnuovo di Porto | 994.81 mi (1,601.00 km) |
| Pen-y-Bont ar Ogwr to Castelnuovo di Verona | 777.65 mi (1,251.50 km) |
| Pen-y-Bont ar Ogwr to Castelnuovo Rangone | 822.65 mi (1,323.93 km) |
| Pen-y-Bont ar Ogwr to Castelvetrano | 1,243.60 mi (2,001.38 km) |
| Pen-y-Bont ar Ogwr to Castelvetro di Modena | 825.54 mi (1,328.58 km) |
| Pen-y-Bont ar Ogwr to Castenaso | 844.57 mi (1,359.20 km) |
| Pen-y-Bont ar Ogwr to Castenedolo | 758.14 mi (1,220.10 km) |
| Pen-y-Bont ar Ogwr to Castiglion Fiorentino | 914.95 mi (1,472.47 km) |
| Pen-y-Bont ar Ogwr to Castiglione del Lago | 929.44 mi (1,495.78 km) |
| Pen-y-Bont ar Ogwr to Castiglione delle Stiviere | 768.88 mi (1,237.40 km) |
| Pen-y-Bont ar Ogwr to Castrolibero | 1,269.20 mi (2,042.59 km) |
