| Bad Honnef am Rhein to Castelfiorentino | 517.37 mi (832.62 km) |
| Bad Honnef am Rhein to Castelfranco di Sopra | 525.89 mi (846.33 km) |
| Bad Honnef am Rhein to Castelfranco di Sotto | 507.43 mi (816.63 km) |
| Bad Honnef am Rhein to Castelfranco Emilia | 454.14 mi (730.87 km) |
| Bad Honnef am Rhein to Castelfranco Veneto | 406.47 mi (654.15 km) |
| Bad Honnef am Rhein to Castellabate | 807.14 mi (1,298.97 km) |
| Bad Honnef am Rhein to Castellammare del Golfo | 914.85 mi (1,472.31 km) |
| Bad Honnef am Rhein to Castellammare di Stabia | 770.67 mi (1,240.28 km) |
| Bad Honnef am Rhein to Castellamonte | 364.33 mi (586.33 km) |
| Bad Honnef am Rhein to Castellana Grotte | 825.73 mi (1,328.89 km) |
| Bad Honnef am Rhein to Castellaneta | 834.14 mi (1,342.41 km) |
| Bad Honnef am Rhein to Castellanza | 355.86 mi (572.70 km) |
| Bad Honnef am Rhein to Castellarano | 451.33 mi (726.35 km) |
| Bad Honnef am Rhein to Castelleone | 387.68 mi (623.90 km) |
| Bad Honnef am Rhein to Castelletto sopra Ticino | 346.60 mi (557.81 km) |
