| Penarth to Castelletto sopra Ticino | 667.27 mi (1,073.87 km) |
| Penarth to Castelli Calepio | 718.10 mi (1,155.68 km) |
| Penarth to Castelnovo ne' Monti | 790.59 mi (1,272.33 km) |
| Penarth to Castelnuovo Berardenga | 882.11 mi (1,419.61 km) |
| Penarth to Castelnuovo di Porto | 977.32 mi (1,572.84 km) |
| Penarth to Castelnuovo di Verona | 759.58 mi (1,222.43 km) |
| Penarth to Castelnuovo Rangone | 804.79 mi (1,295.19 km) |
| Penarth to Castelvetrano | 1,227.27 mi (1,975.10 km) |
| Penarth to Castelvetro di Modena | 807.69 mi (1,299.85 km) |
| Penarth to Castenaso | 826.63 mi (1,330.33 km) |
| Penarth to Castenedolo | 740.12 mi (1,191.12 km) |
| Penarth to Castiglion Fiorentino | 897.24 mi (1,443.97 km) |
| Penarth to Castiglione del Lago | 911.76 mi (1,467.33 km) |
| Penarth to Castiglione delle Stiviere | 750.86 mi (1,208.40 km) |
| Penarth to Castrolibero | 1,251.66 mi (2,014.35 km) |
