| Holborn to Castelletto sopra Ticino | 565.31 mi (909.78 km) |
| Holborn to Castelli Calepio | 611.39 mi (983.93 km) |
| Holborn to Castelnovo ne' Monti | 688.82 mi (1,108.55 km) |
| Holborn to Castelnuovo Berardenga | 781.60 mi (1,257.87 km) |
| Holborn to Castelnuovo di Porto | 878.61 mi (1,413.99 km) |
| Holborn to Castelnuovo di Verona | 650.92 mi (1,047.56 km) |
| Holborn to Castelnuovo Rangone | 700.34 mi (1,127.08 km) |
| Holborn to Castelvetrano | 1,143.96 mi (1,841.02 km) |
| Holborn to Castelvetro di Modena | 703.44 mi (1,132.07 km) |
| Holborn to Castenaso | 720.47 mi (1,159.48 km) |
| Holborn to Castenedolo | 632.90 mi (1,018.56 km) |
| Holborn to Castiglion Fiorentino | 795.21 mi (1,279.77 km) |
| Holborn to Castiglione del Lago | 810.22 mi (1,303.92 km) |
| Holborn to Castiglione delle Stiviere | 643.31 mi (1,035.31 km) |
| Holborn to Castrolibero | 1,151.13 mi (1,852.56 km) |
