| Webster Groves to Castelletto sopra Ticino | 4,755.25 mi (7,652.83 km) |
| Webster Groves to Castelli Calepio | 4,808.92 mi (7,739.21 km) |
| Webster Groves to Castelnovo ne' Monti | 4,876.63 mi (7,848.18 km) |
| Webster Groves to Castelnuovo Berardenga | 4,965.19 mi (7,990.70 km) |
| Webster Groves to Castelnuovo di Porto | 5,055.90 mi (8,136.69 km) |
| Webster Groves to Castelnuovo di Verona | 4,851.18 mi (7,807.22 km) |
| Webster Groves to Castelnuovo Rangone | 4,893.30 mi (7,875.01 km) |
| Webster Groves to Castelvetrano | 5,256.67 mi (8,459.79 km) |
| Webster Groves to Castelvetro di Modena | 4,895.99 mi (7,879.34 km) |
| Webster Groves to Castenaso | 4,916.37 mi (7,912.14 km) |
| Webster Groves to Castenedolo | 4,831.10 mi (7,774.90 km) |
| Webster Groves to Castiglion Fiorentino | 4,982.07 mi (8,017.87 km) |
| Webster Groves to Castiglione del Lago | 4,995.75 mi (8,039.88 km) |
| Webster Groves to Castiglione delle Stiviere | 4,841.95 mi (7,792.37 km) |
| Webster Groves to Castrolibero | 5,328.63 mi (8,575.60 km) |
