| Langley Park to Castelletto sopra Ticino | 4,182.39 mi (6,730.91 km) |
| Langley Park to Castelli Calepio | 4,239.31 mi (6,822.51 km) |
| Langley Park to Castelnovo ne' Monti | 4,300.06 mi (6,920.27 km) |
| Langley Park to Castelnuovo Berardenga | 4,384.65 mi (7,056.42 km) |
| Langley Park to Castelnuovo di Porto | 4,470.53 mi (7,194.62 km) |
| Langley Park to Castelnuovo di Verona | 4,282.82 mi (6,892.53 km) |
| Langley Park to Castelnuovo Rangone | 4,319.21 mi (6,951.10 km) |
| Langley Park to Castelvetrano | 4,645.10 mi (7,475.56 km) |
| Langley Park to Castelvetro di Modena | 4,321.60 mi (6,954.95 km) |
| Langley Park to Castenaso | 4,343.70 mi (6,990.52 km) |
| Langley Park to Castenedolo | 4,261.54 mi (6,858.28 km) |
| Langley Park to Castiglion Fiorentino | 4,402.84 mi (7,085.69 km) |
| Langley Park to Castiglione del Lago | 4,415.55 mi (7,106.15 km) |
| Langley Park to Castiglione delle Stiviere | 4,272.52 mi (6,875.96 km) |
| Langley Park to Castrolibero | 4,738.06 mi (7,625.17 km) |
