| Gebze to Castelletto sopra Ticino | 1,096.68 mi (1,764.93 km) |
| Gebze to Castelli Calepio | 1,035.57 mi (1,666.59 km) |
| Gebze to Castelnovo ne' Monti | 997.25 mi (1,604.92 km) |
| Gebze to Castelnuovo Berardenga | 934.29 mi (1,503.60 km) |
| Gebze to Castelnuovo di Porto | 880.08 mi (1,416.35 km) |
| Gebze to Castelnuovo di Verona | 991.67 mi (1,595.93 km) |
| Gebze to Castelnuovo Rangone | 972.44 mi (1,564.99 km) |
| Gebze to Castelvetrano | 914.57 mi (1,471.86 km) |
| Gebze to Castelvetro di Modena | 971.09 mi (1,562.82 km) |
| Gebze to Castenaso | 945.87 mi (1,522.23 km) |
| Gebze to Castenedolo | 1,014.48 mi (1,632.65 km) |
| Gebze to Castiglion Fiorentino | 913.52 mi (1,470.17 km) |
| Gebze to Castiglione del Lago | 905.89 mi (1,457.88 km) |
| Gebze to Castiglione delle Stiviere | 1,003.84 mi (1,615.53 km) |
| Gebze to Castrolibero | 706.59 mi (1,137.14 km) |
