| Allentown to Castelletto sopra Ticino | 4,052.32 mi (6,521.58 km) |
| Allentown to Castelli Calepio | 4,108.95 mi (6,612.72 km) |
| Allentown to Castelnovo ne' Monti | 4,170.45 mi (6,711.69 km) |
| Allentown to Castelnuovo Berardenga | 4,255.53 mi (6,848.62 km) |
| Allentown to Castelnuovo di Porto | 4,342.02 mi (6,987.80 km) |
| Allentown to Castelnuovo di Verona | 4,152.37 mi (6,682.59 km) |
| Allentown to Castelnuovo Rangone | 4,189.36 mi (6,742.13 km) |
| Allentown to Castelvetrano | 4,520.19 mi (7,274.54 km) |
| Allentown to Castelvetro di Modena | 4,191.79 mi (6,746.03 km) |
| Allentown to Castenaso | 4,213.72 mi (6,781.33 km) |
| Allentown to Castenedolo | 4,131.19 mi (6,648.51 km) |
| Allentown to Castiglion Fiorentino | 4,273.59 mi (6,877.68 km) |
| Allentown to Castiglione del Lago | 4,286.42 mi (6,898.32 km) |
| Allentown to Castiglione delle Stiviere | 4,142.17 mi (6,666.18 km) |
| Allentown to Castrolibero | 4,610.34 mi (7,419.62 km) |
