| Holborn to Castelfidardo | 844.04 mi (1,358.35 km) |
| Holborn to Castelfiorentino | 750.98 mi (1,208.59 km) |
| Holborn to Castelfranco di Sopra | 768.77 mi (1,237.22 km) |
| Holborn to Castelfranco di Sotto | 738.77 mi (1,188.94 km) |
| Holborn to Castelfranco Emilia | 701.97 mi (1,129.72 km) |
| Holborn to Castelfranco Veneto | 681.72 mi (1,097.12 km) |
| Holborn to Castellabate | 1,058.04 mi (1,702.76 km) |
| Holborn to Castellammare del Golfo | 1,125.69 mi (1,811.62 km) |
| Holborn to Castellammare di Stabia | 1,020.12 mi (1,641.73 km) |
| Holborn to Castellamonte | 554.79 mi (892.84 km) |
| Holborn to Castellana Grotte | 1,100.89 mi (1,771.70 km) |
| Holborn to Castellaneta | 1,105.59 mi (1,779.28 km) |
| Holborn to Castellanza | 579.05 mi (931.88 km) |
| Holborn to Castellarano | 694.50 mi (1,117.68 km) |
| Holborn to Castelleone | 623.56 mi (1,003.53 km) |
