| Piqua to Castelletto sopra Ticino | 4,437.60 mi (7,141.63 km) |
| Piqua to Castelli Calepio | 4,492.33 mi (7,229.70 km) |
| Piqua to Castelnovo ne' Monti | 4,558.07 mi (7,335.50 km) |
| Piqua to Castelnuovo Berardenga | 4,645.59 mi (7,476.35 km) |
| Piqua to Castelnuovo di Porto | 4,735.01 mi (7,620.27 km) |
| Piqua to Castelnuovo di Verona | 4,535.03 mi (7,298.42 km) |
| Piqua to Castelnuovo Rangone | 4,575.50 mi (7,363.56 km) |
| Piqua to Castelvetrano | 4,928.69 mi (7,931.96 km) |
| Piqua to Castelvetro di Modena | 4,578.11 mi (7,367.75 km) |
| Piqua to Castenaso | 4,599.03 mi (7,401.43 km) |
| Piqua to Castenedolo | 4,514.55 mi (7,265.47 km) |
| Piqua to Castiglion Fiorentino | 4,662.88 mi (7,504.18 km) |
| Piqua to Castiglione del Lago | 4,676.29 mi (7,525.77 km) |
| Piqua to Castiglione delle Stiviere | 4,525.47 mi (7,283.04 km) |
| Piqua to Castrolibero | 5,006.58 mi (8,057.32 km) |
