| Watertown to Castelfidardo | 4,224.73 mi (6,799.04 km) |
| Watertown to Castelfiorentino | 4,112.51 mi (6,618.45 km) |
| Watertown to Castelfranco di Sopra | 4,136.25 mi (6,656.65 km) |
| Watertown to Castelfranco di Sotto | 4,099.66 mi (6,597.77 km) |
| Watertown to Castelfranco Emilia | 4,078.29 mi (6,563.38 km) |
| Watertown to Castelfranco Veneto | 4,074.04 mi (6,556.53 km) |
| Watertown to Castellabate | 4,412.04 mi (7,100.49 km) |
| Watertown to Castellammare del Golfo | 4,416.15 mi (7,107.11 km) |
| Watertown to Castellammare di Stabia | 4,374.98 mi (7,040.86 km) |
| Watertown to Castellamonte | 3,911.16 mi (6,294.40 km) |
| Watertown to Castellana Grotte | 4,479.55 mi (7,209.14 km) |
| Watertown to Castellaneta | 4,480.35 mi (7,210.43 km) |
| Watertown to Castellanza | 3,951.91 mi (6,359.98 km) |
| Watertown to Castellarano | 4,068.30 mi (6,547.30 km) |
| Watertown to Castelleone | 3,999.05 mi (6,435.85 km) |
