| Olney to Castelletto sopra Ticino | 4,179.78 mi (6,726.71 km) |
| Olney to Castelli Calepio | 4,236.62 mi (6,818.18 km) |
| Olney to Castelnovo ne' Monti | 4,297.57 mi (6,916.27 km) |
| Olney to Castelnuovo Berardenga | 4,382.30 mi (7,052.62 km) |
| Olney to Castelnuovo di Porto | 4,468.32 mi (7,191.07 km) |
| Olney to Castelnuovo di Verona | 4,280.10 mi (6,888.16 km) |
| Olney to Castelnuovo Rangone | 4,316.66 mi (6,947.00 km) |
| Olney to Castelvetrano | 4,643.72 mi (7,473.34 km) |
| Olney to Castelvetro di Modena | 4,319.06 mi (6,950.86 km) |
| Olney to Castenaso | 4,341.12 mi (6,986.36 km) |
| Olney to Castenedolo | 4,258.85 mi (6,853.96 km) |
| Olney to Castiglion Fiorentino | 4,400.45 mi (7,081.84 km) |
| Olney to Castiglione del Lago | 4,413.19 mi (7,102.35 km) |
| Olney to Castiglione delle Stiviere | 4,269.84 mi (6,871.64 km) |
| Olney to Castrolibero | 4,736.05 mi (7,621.93 km) |
